My building has a contract with Time Warner so although I already had HBO before they started the contract I get all the Showtime Channels for just a dollar.
At the moment, although it's not a premium channel my fave is Magic Johnson's AspireTV, because he has reruns of one of my all time faves "I Spy".
Also MeTV and Antenna for the old reruns as well, these new so called comedy shows on the networks are absolutely pathetic.