I purchased a SANYO-DP46848 42"HDTV. I have a Cable box and my cable provider (Time Warner Cable) provides free HD Channels. However.... I CANNOT PICKUP ANY HD CHANNELS ON THE NEW TV. WHY??? --- (Do I need an additional cable??)

I just got the same exact one, when it searches automatically the first time it doesn't look for digital channels. go to Menu>manual channel search>cable. it will look for all possible signals and will take forever probably. the free digital channels will take several seconds to switch channel to channel, but they're there! They will show up on your screen as "DC 91-2" or similar. you can switch back to regular cable channels with the input button, you just cycle through all the inputs. hope that helps.

Additionally, you can use an HD antenna to receive OTA (over the air) HD broadcasts from your local stations. ABC, NBC, CBS, & FOX

U need an hd reciever box with componant or hdmi outputs to display your hd signals

Call Time Warner Cable and request free HD cable SERVICE !!