<s>
Freeview	B-Device
is	O
the	O
United	O
Kingdom	O
's	O
sole	O
digital	B-Application
terrestrial	I-Application
television	I-Application
platform	O
.	O
</s>
<s>
It	O
is	O
operated	O
by	O
Everyone	O
TV	O
and	O
DTV	B-Device
Services	I-Device
Ltd	I-Device
,	O
a	O
joint	O
venture	O
between	O
the	O
BBC	O
,	O
ITV	O
,	O
Channel	O
4	O
,	O
Channel	O
5	O
and	O
Sky	O
.	O
</s>
<s>
The	O
service	O
provides	O
consumer	O
access	O
via	O
an	O
aerial	O
to	O
the	O
seven	O
DTT	O
multiplexes	B-Device
covering	O
the	O
United	O
Kingdom	O
.	O
</s>
<s>
Delivery	O
of	O
standard-definition	B-Device
television	I-Device
and	O
radio	O
is	O
labelled	O
Freeview	B-Device
,	O
while	O
delivery	O
of	O
HDTV	B-Device
is	O
called	O
Freeview	B-Device
HD	O
.	O
</s>
<s>
Reception	O
of	O
Freeview	B-Device
requires	O
a	O
DVB-T/DVB	O
-T2	O
tuner	O
,	O
either	O
in	O
a	O
separate	O
set-top	O
box	O
or	O
built	O
into	O
the	O
TV	O
set	O
.	O
</s>
<s>
Since	O
2008	O
all	O
new	O
TV	O
sets	O
sold	O
in	O
the	O
United	O
Kingdom	O
have	O
a	O
built-in	O
Freeview	B-Device
tuner	O
.	O
</s>
<s>
Freeview	B-Device
HD	O
requires	O
an	O
HDTV-capable	O
tuner	O
.	O
</s>
<s>
Digital	B-Application
video	I-Application
recorders	I-Application
(	O
DVRs	O
)	O
with	O
a	O
built-in	O
Freeview	B-Device
tuner	O
are	O
labelled	O
Freeview+	O
.	O
</s>
<s>
Depending	O
on	O
model	O
,	O
DVRs	O
and	O
HDTV	B-Device
sets	O
with	O
a	O
Freeview	B-Device
tuner	O
may	O
offer	O
standard	O
Freeview	B-Device
or	O
Freeview	B-Device
HD	O
.	O
</s>
<s>
Freeview	B-Device
Play	O
is	O
a	O
more	O
recent	O
addition	O
which	O
adds	O
direct	O
access	O
to	O
catch-up	O
services	O
via	O
the	O
Internet	O
.	O
</s>
<s>
The	O
technical	O
specification	O
for	O
Freeview	B-Device
is	O
published	O
and	O
maintained	O
by	O
the	O
Digital	O
TV	O
Group	O
,	O
the	O
industry	O
association	O
for	O
digital	O
TV	O
in	O
the	O
UK	O
which	O
also	O
provide	O
the	O
test	O
and	O
conformance	O
regime	O
for	O
Freeview	B-Device
,	O
Freeview	B-Device
+	O
and	O
Freeview	B-Device
HD	O
products	O
.	O
</s>
<s>
DMOL	O
(	O
DTT	O
Multiplex	B-Device
Operators	O
Ltd	O
.	O
)	O
,	O
a	O
company	O
owned	O
by	O
the	O
operators	O
of	O
the	O
six	O
DTT	O
multiplexes	B-Device
(	O
BBC	O
,	O
ITV	O
,	O
Channel	O
4	O
,	O
and	O
Arqiva	O
)	O
is	O
responsible	O
for	O
technical	O
platform	O
management	O
and	O
policy	O
,	O
including	O
the	O
electronic	B-Device
programme	I-Device
guide	I-Device
and	O
channel	O
numbering	O
.	O
</s>
<s>
Freeview	B-Device
officially	O
launched	O
on	O
30	O
October	O
2002	O
at	O
5	O
am	O
,	O
when	O
the	O
BBC	O
and	O
Crown	O
Castle	O
(	O
now	O
Arqiva	O
)	O
officially	O
took	O
over	O
the	O
digital	B-Application
terrestrial	I-Application
television	I-Application
(	O
DTT	O
)	O
licences	O
to	O
broadcast	O
on	O
the	O
three	O
multiplexes	B-Device
from	O
the	O
defunct	O
ITV	O
Digital	O
.	O
</s>
<s>
The	O
founding	O
members	O
of	O
DTV	B-Device
Services	I-Device
,	O
who	O
trade	O
as	O
Freeview	B-Device
,	O
were	O
the	O
BBC	O
,	O
Crown	O
Castle	O
UK	O
and	O
British	O
Sky	O
Broadcasting	O
.	O
</s>
<s>
Since	O
then	O
,	O
the	O
Freeview	B-Device
model	O
has	O
been	O
copied	O
in	O
Australia	O
and	O
New	O
Zealand	O
.	O
</s>
<s>
With	O
the	O
launch	O
of	O
Freeview	B-Device
other	O
channels	O
were	O
broadcast	O
free-to-air	O
,	O
such	O
as	O
:	O
Sky	O
Travel	O
,	O
UK	O
History	O
,	O
Sky	O
News	O
,	O
Sky	O
Sports	O
News	O
,	O
The	O
Hits	O
(	O
now	O
4Music	O
)	O
and	O
TMF	O
(	O
renamed	O
Viva	O
,	O
now	O
defunct	O
)	O
were	O
available	O
from	O
the	O
start	O
.	O
</s>
<s>
BBC	O
Four	O
and	O
the	O
interactive	O
BBC	O
streams	O
were	O
moved	O
to	O
multiplex	B-Device
B	O
.	O
</s>
<s>
Under	O
the	O
initial	O
plans	O
,	O
the	O
two	O
multiplexes	B-Device
operated	O
by	O
Crown	O
Castle	O
would	O
carry	O
eight	O
channels	O
altogether	O
.	O
</s>
<s>
The	O
eighth	O
stream	O
was	O
left	O
unused	O
until	O
April	O
2004	O
when	O
the	O
shopping	O
channel	O
Ideal	O
World	O
launched	O
on	O
Freeview	B-Device
.	O
</s>
<s>
There	O
are	O
now	O
14	O
streams	O
carried	O
by	O
two	O
multiplexes	B-Device
,	O
with	O
Multiplex	B-Device
C	O
carrying	O
6	O
streams	O
,	O
and	O
Multiplex	B-Device
D	O
carrying	O
8	O
.	O
</s>
<s>
It	O
has	O
recently	O
been	O
announced	O
that	O
more	O
streams	O
are	O
now	O
available	O
on	O
the	O
multiplexes	B-Device
,	O
and	O
that	O
bidding	O
is	O
under	O
way	O
.	O
</s>
<s>
The	O
Freeview	B-Device
service	O
underwent	O
a	O
major	O
upgrade	O
on	O
30	O
September	O
2009	O
,	O
which	O
required	O
18	O
million	O
households	O
to	O
retune	O
their	O
Freeview	B-Device
receiving	O
equipment	O
.	O
</s>
<s>
The	O
Freeview	B-Device
website	O
crashed	O
and	O
the	O
call	O
centre	O
was	O
inundated	O
as	O
a	O
result	O
of	O
the	O
problems	O
.	O
</s>
<s>
Updates	O
were	O
broadcast	O
to	O
enable	O
firmware	B-Application
changes	O
,	O
but	O
in	O
some	O
cases	O
the	O
receiver	O
must	O
be	O
left	O
on	O
and	O
receiving	O
broadcasts	O
to	O
accept	O
the	O
updates	O
;	O
not	O
everyone	O
was	O
aware	O
of	O
this	O
.	O
</s>
<s>
The	O
Freeview	B-Device
service	O
underwent	O
a	O
major	O
upgrade	O
on	O
3	O
September	O
2014	O
which	O
required	O
18	O
million	O
households	O
to	O
retune	O
their	O
Freeview	B-Device
receiving	O
equipment	O
.	O
</s>
<s>
A	O
number	O
of	O
new	O
HD	O
channels	O
launched	O
in	O
2014	O
,	O
from	O
a	O
new	O
group	O
of	O
multiplexes	B-Device
awarded	O
to	O
Arqiva	O
.	O
</s>
<s>
The	O
temporary	O
multiplexes	B-Device
are	O
Arqiva-owned	O
multiplexes	B-Device
called	O
COM7	O
and	O
COM8	O
,	O
DVB-T2	B-Protocol
multiplexes	B-Device
for	O
Freeview	B-Device
HD	O
capable	O
devices	O
carrying	O
some	O
channels	O
including	O
HD	O
channels	O
.	O
</s>
<s>
Over	O
the	O
decade	O
these	O
multiplexes	B-Device
are	O
being	O
shut	O
off	O
with	O
COM8	O
closing	O
on	O
6	O
June	O
2020	O
,	O
with	O
many	O
+1	O
and	O
HD	O
channels	O
like	O
5Star+1	O
and	O
4seven	O
HD	O
closing	O
and	O
others	O
(	O
like	O
Now	O
80s	O
)	O
moving	O
to	O
COM7	O
.	O
</s>
<s>
On	O
the	O
evening	O
of	O
25	O
September	O
2021	O
,	O
transmissions	O
of	O
Freeview	B-Device
channels	O
operated	O
by	O
the	O
BBC	O
,	O
Channel	O
4	O
and	O
ViacomCBS	O
(	O
Channel	O
5	O
)	O
were	O
impacted	O
by	O
the	O
activation	O
of	O
a	O
fire	O
suppressant	O
system	O
at	O
the	O
premises	O
of	O
Red	O
Bee	O
Media	O
.	O
</s>
<s>
The	O
Freeview	B-Device
service	O
broadcasts	O
free-to-air	O
television	O
channels	O
,	O
radio	O
stations	O
and	O
interactive	O
services	O
from	O
the	O
existing	O
public	O
service	O
broadcasters	O
.	O
</s>
<s>
The	O
full	O
range	O
of	O
channels	O
broadcast	O
via	O
digital	B-Application
terrestrial	I-Application
television	I-Application
includes	O
some	O
pay	O
television	O
services	O
such	O
as	O
BoxNation	O
and	O
Racing	O
UK	O
.	O
</s>
<s>
These	O
channels	O
,	O
although	O
available	O
only	O
to	O
subscribers	O
with	O
appropriate	O
equipment	O
,	O
are	O
listed	O
in	O
the	O
on-screen	O
electronic	B-Device
programme	I-Device
guides	I-Device
displayed	O
by	O
many	O
Freeview	B-Device
receivers	O
but	O
cannot	O
be	O
viewed	O
.	O
</s>
<s>
The	O
link	O
above	O
gives	O
a	O
full	O
up-to-date	O
list	O
of	O
channels	O
,	O
but	O
,	O
as	O
of	O
January	O
2020	O
,	O
excluding	O
channels	O
such	O
as	O
S4C	O
or	O
the	O
many	O
Local	O
TV	O
services	O
(	O
1	O
service	O
included	O
in	O
the	O
count	O
)	O
they	O
total	O
105	O
Freeview	B-Device
,	O
17	O
Freeview	B-Device
HD	O
and	O
33	O
radio	O
.	O
</s>
<s>
To	O
receive	O
Freeview	B-Device
,	O
either	O
a	O
television	O
with	O
an	O
integrated	O
digital	O
tuner	O
or	O
an	O
older	O
analogue	O
television	O
with	O
a	O
suitable	O
Freeview-branded	O
set-top	O
box	O
is	O
required	O
.	O
</s>
<s>
The	O
Digital	O
TV	O
Group	O
,	O
the	O
industry	O
association	O
for	O
digital	O
television	O
in	O
the	O
UK	O
,	O
is	O
responsible	O
for	O
co-ordination	O
between	O
Freeview	B-Device
and	O
other	O
digital	O
services	O
.	O
</s>
<s>
The	O
original	O
Freeview	B-Device
was	O
later	O
expanded	O
with	O
additional	O
facilities	O
(	O
Freeview+	O
)	O
,	O
high-definition	O
channels	O
(	O
Freeview	B-Device
HD	O
)	O
,	O
and	O
Internet	O
connectivity	O
(	O
Freeview	B-Device
Play	O
)	O
.	O
</s>
<s>
All	O
services	O
remain	O
available	O
;	O
the	O
original	O
Freeview	B-Device
equipment	O
will	O
work	O
(	O
unenhanced	O
)	O
in	O
the	O
same	O
way	O
it	O
always	O
did	O
.	O
</s>
<s>
The	O
original	O
Freeview	B-Device
service	O
allowed	O
a	O
large	O
number	O
of	O
digital	O
television	O
channels	O
to	O
be	O
received	O
on	O
a	O
compatible	O
television	O
receiver	O
,	O
set-top	O
box	O
,	O
or	O
personal	B-Application
video	I-Application
recorder	I-Application
.	O
</s>
<s>
An	O
electronic	B-Device
programme	I-Device
guide	I-Device
was	O
available	O
.	O
</s>
<s>
Freeview	B-Device
channels	O
are	O
not	O
encrypted	O
and	O
can	O
be	O
received	O
by	O
anyone	O
in	O
the	O
UK	O
.	O
</s>
<s>
There	O
is	O
no	O
additional	O
charge	O
to	O
receive	O
Freeview	B-Device
but	O
it	O
is	O
a	O
legal	O
obligation	O
to	O
hold	O
a	O
current	O
television	O
licence	O
to	O
watch	O
or	O
record	O
TV	O
as	O
it	O
is	O
being	O
broadcast	O
.	O
</s>
<s>
The	O
Top	O
Up	O
TV	O
service	O
was	O
not	O
connected	O
with	O
the	O
Freeview	B-Device
service	O
,	O
but	O
ran	O
alongside	O
it	O
on	O
the	O
DTT	O
platform	O
and	O
was	O
included	O
in	O
the	O
Freeview	B-Device
EPG	B-Device
;	O
programmes	O
could	O
be	O
received	O
on	O
some	O
Freeview	B-Device
set-top	O
boxes	O
and	O
televisions	O
equipped	O
with	O
a	O
card	O
slot	O
or	O
CI	B-Device
slot	O
.	O
</s>
<s>
Top	O
Up	O
TV	O
was	O
replaced	O
in	O
2006	O
,	O
by	O
a	O
service	O
that	O
did	O
not	O
run	O
on	O
Freeview	B-Device
equipment	O
.	O
</s>
<s>
The	O
Freeview	B-Device
logo	O
certification	O
for	O
standard	B-Device
definition	I-Device
(	O
SD	O
)	O
receivers	O
and	O
recorders	O
was	O
withdrawn	O
in	O
January	O
2017	O
.	O
</s>
<s>
Freeview	B-Device
HD	O
comprises	O
a	O
number	O
of	O
high-definition	O
versions	O
of	O
existing	O
channels	O
.	O
</s>
<s>
It	O
requires	O
a	O
different	O
high-definition	O
tuner	O
,	O
and	O
does	O
not	O
supersede	O
or	O
replace	O
standard	O
Freeview	B-Device
.	O
</s>
<s>
On	O
20	O
August	O
2020	O
,	O
Freeview	B-Device
announced	O
that	O
it	O
would	O
phase	O
out	O
their	O
Freeview	B-Device
HD	O
brand	O
in	O
2022	O
.	O
</s>
<s>
With	O
two	O
channels	O
(	O
BBC	O
HD	O
and	O
ITV	O
HD	O
)	O
Freeview	B-Device
HD	O
completed	O
a	O
"	O
technical	O
launch	O
"	O
on	O
2	O
December	O
2009	O
from	O
Winter	O
Hill	O
(	O
as	O
a	O
full	O
power	O
service	O
)	O
and	O
Crystal	O
Palace	O
(	O
as	O
a	O
reduced	O
power	O
temporary	O
service	O
)	O
.	O
</s>
<s>
It	O
operates	O
on	O
multiplex	B-Device
BBC	O
B	O
(	O
aka	O
Multiplex	B-Device
B	O
or	O
PSB3	O
)	O
.	O
</s>
<s>
Channel	O
4	O
HD	O
commenced	O
test	O
broadcasts	O
on	O
25	O
March	O
2010	O
with	O
an	O
animated	O
caption	O
,	O
ahead	O
of	O
its	O
full	O
launch	O
on	O
30	O
March	O
2010	O
,	O
coinciding	O
with	O
the	O
commercial	O
launch	O
of	O
Freeview	B-Device
HD	O
.	O
</s>
<s>
Spare	O
allocation	O
on	O
multiplex	B-Device
B	O
was	O
handed	O
over	O
to	O
the	O
BBC	O
,	O
two	O
years	O
from	O
the	O
date	O
when	O
it	O
was	O
anticipated	O
that	O
further	O
capacity	O
on	O
multiplex	B-Device
B	O
would	O
revert	O
to	O
the	O
control	O
of	O
the	O
BBC	O
Trust	O
.	O
</s>
<s>
On	O
3	O
November	O
2010	O
,	O
BBC	O
One	O
HD	O
launched	O
on	O
Freeview	B-Device
HD	O
.	O
</s>
<s>
The	O
BBC	O
temporarily	O
used	O
the	O
space	O
to	O
broadcast	O
a	O
high	O
definition	O
simulcast	O
of	O
their	O
main	O
Freeview	B-Device
red	O
button	O
feed	O
for	O
the	O
duration	O
of	O
the	O
2012	O
Summer	O
Olympics	O
,	O
followed	O
by	O
a	O
channel	O
from	O
Channel	O
4	O
for	O
the	O
2012	O
Summer	O
Paralympics	O
.	O
</s>
<s>
On	O
16	O
July	O
2013	O
,	O
Ofcom	O
announced	O
that	O
up	O
to	O
10	O
new	O
HD	O
channels	O
would	O
be	O
launched	O
by	O
early	O
2014	O
,	O
using	O
new	O
capacity	O
made	O
available	O
by	O
the	O
digital	B-Device
switchover	I-Device
.	O
</s>
<s>
This	O
provided	O
additional	O
spectrum	O
in	O
the	O
600Mhz	O
band	O
for	O
additional	O
DVB-T2	B-Protocol
multiplexes	B-Device
,	O
reaching	O
up	O
to	O
70%	O
of	O
the	O
UK	O
population	O
.	O
</s>
<s>
Channel	O
5	O
HD	O
launched	O
on	O
Freeview	B-Device
on	O
4	O
May	O
2016	O
.	O
</s>
<s>
In	O
June	O
2022	O
,	O
it	O
was	O
announced	O
that	O
the	O
COM7	O
multiplex	B-Device
would	O
be	O
closing	O
due	O
to	O
the	O
license	O
expiring	O
and	O
the	O
frequency	O
used	O
being	O
released	O
for	O
5G	O
.	O
</s>
<s>
The	O
BBC	O
announced	O
that	O
they	O
have	O
made	O
provisions	O
for	O
a	O
6th	O
slot	O
for	O
BBC	O
Four	O
HD	O
and	O
CBeebies	O
HD	O
to	O
move	O
into	O
available	O
capacity	O
that	O
has	O
been	O
newly	O
identified	O
on	O
the	O
PSB3	O
multiplex	B-Device
which	O
the	O
BBC	O
operates	O
.	O
</s>
<s>
However	O
,	O
BBC	O
News	O
HD	O
would	O
stop	O
being	O
broadcast	O
on	O
Freeview	B-Device
.	O
</s>
<s>
The	O
Digital	O
TV	O
Group	O
publishes	O
and	O
maintains	O
the	O
UK	O
technical	O
specification	O
for	O
high-definition	O
services	O
on	O
digital	B-Application
terrestrial	I-Application
television	I-Application
(	O
Freeview	B-Device
)	O
based	O
on	O
the	O
new	O
DVB-T2	B-Protocol
standard	O
.	O
</s>
<s>
The	O
specification	O
is	O
known	O
as	O
the	O
D-book	B-Device
.	O
</s>
<s>
Freeview	B-Device
HD	O
is	O
the	O
first	O
operational	O
TV	O
service	O
in	O
the	O
world	O
using	O
the	O
DVB-T2	B-Protocol
standard	O
.	O
</s>
<s>
Some	O
television	O
receivers	O
sold	O
before	O
the	O
HD	O
launch	O
claimed	O
to	O
be	O
"	O
HD-ready	O
"	O
,	O
but	O
this	O
usually	O
implies	O
that	O
the	O
screen	O
can	O
display	O
HD	O
,	O
rather	O
than	O
that	O
DVB-T2	B-Protocol
signals	O
can	O
be	O
received	O
a	O
suitable	O
tuner	O
(	O
typically	O
built	O
into	O
a	O
STB	O
or	O
PVR	O
)	O
is	O
additionally	O
required	O
.	O
</s>
<s>
Freeview	B-Device
HD	O
set-top	O
boxes	O
and	O
televisions	O
are	O
available	O
.	O
</s>
<s>
To	O
qualify	O
for	O
the	O
Freeview	B-Device
HD	O
logo	O
,	O
receivers	O
will	O
need	O
to	O
be	O
IPTV-capable	O
and	O
display	O
Freeview	B-Device
branding	O
,	O
including	O
the	O
logo	O
,	O
on	O
the	O
electronic	B-Device
programme	I-Device
guide	I-Device
screen	O
.	O
</s>
<s>
The	O
Freeview	B-Device
HD	O
trademark	O
requirements	O
state	O
that	O
any	O
manufacturer	O
applying	O
for	O
the	O
Freeview	B-Device
HD	O
logo	O
should	O
submit	O
their	O
product	O
to	O
the	O
Digital	O
TV	O
Group	O
's	O
test	O
centre	O
(	O
DTG	O
Testing	O
)	O
for	O
conformance	O
testing	O
.	O
</s>
<s>
On	O
2	O
February	O
2010	O
,	O
Vestel	O
became	O
the	O
first	O
manufacturer	O
to	O
gain	O
Freeview	B-Device
HD	O
certification	O
,	O
for	O
the	O
Vestel	O
T8300	O
set	O
top	O
box	O
.	O
</s>
<s>
Humax	O
released	O
the	O
first	O
Freeview	B-Device
HD	O
reception	O
equipment	O
,	O
the	O
Humax	O
HD-FOX	O
T2	O
,	O
on	O
13	O
February	O
2010	O
.	O
</s>
<s>
It	O
was	O
announced	O
on	O
10	O
February	O
2009	O
,	O
that	O
the	O
signal	O
would	O
be	O
encoded	O
with	O
MPEG-4	B-Application
AVC	I-Application
High	O
Profile	O
Level	O
4	O
,	O
which	O
supports	O
up	O
to	O
1080i30/1080p30	O
,	O
so	O
1080p50	O
cannot	O
be	O
used	O
.	O
</s>
<s>
AAC	B-Application
or	O
Dolby	O
Digital	O
Plus	O
audio	O
is	O
transmitted	O
at	O
384kb/s	O
for	O
5.1	O
surround	O
sound	O
,	O
with	O
stereo	O
audio	O
at	O
128	O
–	O
192kbit/s	O
;	O
audio	O
description	O
takes	O
up	O
64kbit/s	O
,	O
subtitles	O
200kbit/s	O
and	O
the	O
data	O
stream	O
,	O
for	O
interactive	O
applications	O
50kbit/s	O
.	O
</s>
<s>
Recording	O
sizes	O
for	O
Freeview	B-Device
HD	O
television	O
transmissions	O
average	O
around	O
3GB	O
per	O
hour	O
.	O
</s>
<s>
Between	O
22	O
and	O
23	O
March	O
2011	O
,	O
an	O
encoder	O
software	O
change	O
allowed	O
the	O
Freeview	B-Device
version	O
of	O
BBC	O
HD	O
to	O
automatically	O
detect	O
progressive	O
material	O
and	O
change	O
encoding	O
mode	O
appropriately	O
,	O
meaning	O
the	O
channel	O
can	O
switch	O
to	O
1080p25	O
.	O
</s>
<s>
This	O
was	O
extended	O
to	O
all	O
of	O
the	O
other	O
Freeview	B-Device
HD	O
channels	O
in	O
October	O
2011	O
.	O
</s>
<s>
To	O
ensure	O
provision	O
of	O
audio	O
description	O
,	O
broadcasters	O
typically	O
use	O
the	O
AAC	B-Application
codec	O
.	O
</s>
<s>
In	O
the	O
case	O
of	O
BBC	O
HD	O
,	O
the	O
main	O
audio	O
is	O
coded	O
as	O
AAC-LC	B-Application
and	O
only	O
the	O
audio	O
description	O
is	O
encoded	O
as	O
HE-AAC	O
.	O
</s>
<s>
Neither	O
AAC	B-Application
nor	O
Dolby	O
Digital	O
Plus	O
codecs	O
are	O
supported	O
by	O
most	O
home	O
AV	O
equipment	O
,	O
which	O
typically	O
accept	O
Dolby	O
Digital	O
or	O
DTS	O
,	O
leaving	O
owners	O
with	O
stereo	O
,	O
rather	O
than	O
surround	O
sound	O
,	O
output	O
.	O
</s>
<s>
Transcoding	O
from	O
AAC	B-Application
to	O
Dolby	O
Digital	O
or	O
DTS	O
and	O
multi-channel	O
output	O
via	O
HDMI	B-Protocol
was	O
not	O
originally	O
necessary	O
for	O
Freeview	B-Device
HD	O
certification	O
.	O
</s>
<s>
As	O
of	O
June	O
2010	O
the	O
DTG	O
D-Book	B-Device
includes	O
the	O
requirement	O
for	O
mandatory	O
transcoding	O
when	O
sending	O
audio	O
via	O
S/PDIF	O
,	O
and	O
for	O
either	O
transcoding	O
or	O
multi-channel	O
PCM	B-Algorithm
audio	I-Algorithm
when	O
sending	O
it	O
via	O
HDMI	B-Protocol
in	O
order	O
for	O
manufacturers	O
to	O
gain	O
Freeview	B-Device
HD	O
certification	O
from	O
April	O
2011	O
.	O
</s>
<s>
Thus	O
equipment	O
sold	O
as	O
Freeview	B-Device
HD	O
before	O
April	O
2011	O
may	O
not	O
deliver	O
surround	O
sound	O
to	O
audio	O
equipment	O
(	O
some	O
equipment	O
may	O
,	O
but	O
this	O
is	O
not	O
mandatory	O
)	O
;	O
later	O
equipment	O
must	O
be	O
capable	O
of	O
surround	O
sound	O
compatible	O
with	O
most	O
suitable	O
audio	O
equipment	O
.	O
</s>
<s>
In	O
early	O
February	O
2011	O
,	O
it	O
was	O
announced	O
that	O
one	O
million	O
Freeview	B-Device
HD	O
set-top	O
boxes	O
had	O
been	O
sold	O
.	O
</s>
<s>
In	O
August	O
2009	O
the	O
BBC	O
wrote	O
to	O
Ofcom	O
after	O
third-party	O
content	O
owners	O
asked	O
the	O
BBC	O
to	O
undertake	O
measures	O
to	O
ensure	O
that	O
all	O
Freeview	B-Device
HD	O
boxes	O
would	O
include	O
copy	B-Application
protection	I-Application
systems	O
as	O
required	O
by	O
the	O
Digital	O
TV	O
Group	O
's	O
D-Book	B-Device
,	O
which	O
sets	O
technical	O
standards	O
for	O
digital	B-Application
terrestrial	I-Application
television	I-Application
in	O
the	O
UK	O
.	O
</s>
<s>
The	O
BBC	O
proposed	O
to	O
ensure	O
compliance	O
with	O
copy-protection	B-Application
standards	O
on	O
the	O
upgraded	O
Freeview	B-Device
HD	O
multiplex	B-Device
by	O
compressing	O
the	O
service	O
information	O
(	O
SI	O
)	O
data	O
,	O
which	O
receivers	O
need	O
to	O
understand	O
the	O
TV	O
services	O
in	O
the	O
data	O
stream	O
.	O
</s>
<s>
To	O
encourage	O
boxes	O
to	O
adopt	O
copy	B-Application
protection	I-Application
,	O
the	O
BBC	O
made	O
its	O
own	O
look-up	O
tables	O
and	O
decompression	O
algorithm	O
,	O
necessary	O
for	O
decoding	O
the	O
EPG	B-Device
data	O
on	O
high-definition	O
channels	O
,	O
available	O
without	O
charge	O
only	O
to	O
manufacturers	O
who	O
implement	O
the	O
copy-protection	B-Application
technology	O
.	O
</s>
<s>
No	O
restrictions	O
will	O
be	O
placed	O
on	O
standard-definition	B-Device
services	O
.	O
</s>
<s>
The	O
BBC	O
had	O
suggested	O
that	O
as	O
an	O
alternative	O
to	O
the	O
SI	O
compression	O
scheme	O
,	O
the	O
Freeview	B-Device
HD	O
multiplex	B-Device
may	O
have	O
to	O
adopt	O
encryption	O
.	O
</s>
<s>
On	O
14	O
June	O
2010	O
,	O
Ofcom	O
agreed	O
to	O
allow	O
the	O
BBC	O
to	O
limit	O
the	O
full	O
availability	O
of	O
its	O
own	O
and	O
other	O
broadcasters	O
 '	O
high	O
definition	O
(	O
HD	O
)	O
Freeview	B-Device
services	O
to	O
receivers	O
that	O
control	O
how	O
HD	O
content	O
can	O
be	O
used	O
.	O
</s>
<s>
Freeview	B-Device
HD	O
Recorder	O
(	O
formerly	O
Freeview+	O
,	O
originally	O
named	O
Freeview	B-Device
Playback	O
)	O
is	O
the	O
marketing	O
name	O
for	O
Freeview-capable	O
digital	B-Application
video	I-Application
recorders	I-Application
with	O
some	O
enhancements	O
over	O
the	O
original	O
Freeview	B-Device
.	O
</s>
<s>
All	O
recorders	O
are	O
required	O
to	O
include	O
the	O
following	O
features	O
in	O
addition	O
to	O
standard	O
Freeview	B-Device
:	O
</s>
<s>
(	O
Since	O
this	O
is	O
based	O
on	O
signals	O
from	O
the	O
broadcaster	O
,	O
the	O
broadcaster	O
can	O
prevent	O
recording	O
by	O
sending	O
nonsense	O
signals	O
as	O
a	O
form	O
of	O
copy	B-Application
protection	I-Application
,	O
as	O
already	O
happens	O
on	O
music	O
channels	O
.	O
</s>
<s>
However	O
this	O
was	O
before	O
the	O
Freeview	B-Device
brand	O
and	O
its	O
Playback	O
and	O
+	O
marketing	O
names	O
were	O
introduced	O
.	O
</s>
<s>
Freeview	B-Device
Play	O
combines	O
the	O
existing	O
live	O
television	O
service	O
with	O
catch-up	O
TV	O
(	O
BBC	B-Application
iPlayer	I-Application
,	O
ITVX	O
,	O
STV	B-Operating_System
Player	I-Operating_System
,	O
All	O
4	O
,	O
My5	O
,	O
UKTV	O
Play	O
,	O
Pop	O
Player	O
,	O
CBS	O
Catchup	O
Channels	O
UK	O
,	O
Horror	O
Bites	O
)	O
on	O
a	O
variety	O
of	O
compatible	O
TV	O
and	O
set-top	O
boxes	O
via	O
the	O
user	O
's	O
standard	O
broadband	O
Internet	O
connection	O
.	O
</s>
<s>
Its	O
main	O
purpose	O
is	O
to	O
provide	O
easy	O
access	O
to	O
catch-up	O
services	O
by	O
scrolling	O
backwards	O
on	O
the	O
traditional	O
electronic	B-Device
programming	I-Device
guide	I-Device
(	O
EPG	B-Device
)	O
;	O
YouView	O
is	O
a	O
similar	O
but	O
competing	O
combination	O
of	O
live	O
Freeview	B-Device
and	O
catch-up	O
using	O
the	O
EPG	B-Device
.	O
</s>
<s>
The	O
technology	O
is	O
an	O
open	O
standard	O
,	O
but	O
with	O
prominent	O
Freeview	B-Device
Play	O
branding	O
.	O
</s>
<s>
The	O
2017	O
specification	O
for	O
Freeview	B-Device
Play	O
includes	O
support	O
for	O
HDR	B-Application
video	I-Application
using	O
hybrid	O
log	O
–	O
gamma	O
(	O
HLG	O
)	O
,	O
when	O
playing	O
on-demand	O
broadband	O
content	O
.	O
</s>
<s>
In	O
2019	O
Freeview	B-Device
released	O
an	O
app	B-Application
for	O
iOS	B-Application
and	O
Android	B-Application
devices	O
.	O
</s>
<s>
The	O
app	B-Application
provides	O
a	O
centralised	O
TV	O
guide	O
for	O
23	O
channels	O
and	O
the	O
ability	O
to	O
watch	O
them	O
through	O
BBC	B-Application
iPlayer	I-Application
,	O
ITVX	O
,	O
STV	B-Operating_System
Player	I-Operating_System
,	O
All	O
4	O
,	O
My5	O
and	O
UKTV	O
Play	O
.	O
</s>
