Time Warner Cable has insisted that the fee increases that CBS is asking for are unreasonable; CBS has argued it provides far more value than many cable networks that require much higher fees. Some reports have said CBS is asking for an increase of about 100 percent, to $2 a subscriber, from $1. A spokesman for the Federal Communications Commission said that the agency was disappointed that the companies had not reached an agreement. "We urge all parties involved to resolve this situation as soon as possible." Despite recriminations on Friday from both sides, the negotiations are expected to resume as soon as Monday. That does not mean a quick settlement is likely, however. Mr. Greenfield said he could foresee CBS's being dark "six weeks, if not more." An executive close to the CBS side of the talks predicted 10 to 14 days. In the meantime, CBS is sending messages on the radio and through other outlets urging viewers to complain to Time Warner Cable.