Telecommunications and media company Comcast (NASDAQ:CMCSA) will be announcing earnings results tomorrow before market hours. Here's what investors should know. Comcast met analysts' revenue expectations last quarter, reporting revenues of $30.06 billion, up 1.2% year on year. It was a mixed quarter for the company, with a miss of analysts' earnings estimates. Is Comcast a buy or sell going into earnings? Read our full analysis here, it's free. This quarter, analysts are expecting Comcast's revenue to decline 1.5% year on year to $30.05 billion, a reversal from the 1.7% increase it recorded in the same quarter last year. Adjusted earnings are expected to come in at $1.12 per share. Analysts covering the company have generally reconfirmed their estimates over the last 30 days, suggesting they anticipate the business to stay the course heading into earnings. Comcast has a history of exceeding Wall Street's expectations, beating revenue estimates every single time over the past two years by 1.2% on average.