I have a Hauppauge 2250, using Windows Media Center 7 and my cable provider is Charter. I managed to get a few HD channels up (TNT, ABC, TOON, etc), but not all the other stations I'm able to get normally (Comedy Central, Discovery, History Channel, etc. Channels 2-78 I think). I didn't have any special box before hand, just cable from the wall into my TV.
Is there anyway to get the rest of these channels?