http://blog.chron.com/sportsmedia/2012/12/espn-outdraws-csn-houston-for-celtics-rockets-game/ ESPN outdraws CSN Houston for Celtics-Rockets game To the surprise of absolutely no one, ESPN’s broadcast of the Celtics-Rockets game on Friday night drew a bigger audience than Comcast SportsNet Houston’s broadcast of the same game. Even when Astros and Rockets games are equally distributed, the national broadcast generally siphons off a good portion of the local audience. In a case such as this one, where CSN Houston is available in only 40 percent of the market, the gap can be considerable. In this case, the game had a 0.97 rating on CSN Houston, averaging 21,563 households (one of CSNH’s better Rockets ratings, for the record) to 1.56 (34,576 households) on ESPN in Houston. That’s a combined of 2.53, making it easily the most-watched Rockets’ game of the year. As year’s end approaches, there’s nothing new to report on carriage talks for CSN Houston, which is owned by the teams and by the NBC Sports Group, and DirecTV, Dish Network, AT&T U-verse or Suddenlink and other area cable systems that don’t carry the channel.