I was wondering, with a PCI video capture card, like the ATI TV WONDER PRO PCI TV Tuner, It says it has a "built in 125 channel TV tuner" but you have to plug in your normal coax cable to it like you're plugging in a TV. do you need to allready have all those channels (ie. on other televisions in the house) to get those channels on my computer? (I use my TV as a monitor anyways so I thought this may be a good idea.) thanks!
-Matt