Apart from the usual political stuff, a truly-Liberal media wouldn't treat nudity & blatant sex like some weird eldritch thing (Janet & Justin's Super Bowl Boobie Shuffle would've been a non-issue). Swearing wouldn't be bleeped out & condom commercials would be all over the place in the same fashion as ads for "male enhancement", diapers, feminine hygiene products & hemorrhoid cream (and nobody would care).
And no "Network Decay" for education-based cable stations like Discovery or The History. They would stick with real, proven science & history, not sensationalism, doomsday garbage or phony documentaries passed off as real.