From Satellite TV News..
TV One airs original lifestyle and entertainment-oriented shows, movies, fashion and music programming is planning to launch a high-definition channel in fourth quarter 2008. The network owned by Radio One, Comcast Corporation and DirecTV has a subscriber base of 43-million via DirecTV, Comcast, Cox, Charter, Time Warner Cable, Insight, and other smaller
TV One planning to Launch HD channel

From Todays News..
MGM HD has signed an affiliate agreement with Time Warner Cable to provide MGM HD to Time Warner Cable customers. MGM HD, the high-def channel from the Metro-Goldwyn-Mayer studio has already signed a carriage deal with Comcast.
Time Warner Cable Signs MGM HD Carriage Agreement