Free market capitalism is very beneficial to the consumers...when there is open competition.
You have to remember how the government has framed "competition" for companies like Comcast. Comcast and Time Warner are not competitors, any more than New York's MTA is a competitor of San Francisco's BART. Comcast competes with other "Internet Service Providers" or "Video Services" in its exclusive territorial boundaries. ie: Comcast only competes with AT&T, Verizon, and Dish.
As long as you can manage the double-think of "competition" specifically excluding the relationship between multiple providers similar technology, you will understand how having a single, national, coax-cable-based company increases competition, specifically with the twisted-copper-based company (AT&T) and the satellite-based company. As long as you can manage the double-think of competition, you will see that there is no barrier to any new company developing and distributing "Internet" or "TV," as long as that company doesn't use coax or twisted-pair wires. See how easily Google has been able to enter the ISP business by using fiber?