[snip]
If my experience means anything, I don't think an aerial will work.
I've tried it with an All-in-wonder and a Leadtek TV card but could
not pick up a signal at all in either case. The tech support for AIW
told me that there just isn't enough gain in a TV antenna.
I find it odd that the TV tuner in a cheap VCR will accept an antenna
just fine, but TV tuners for a PC will not.
Not only does it work, but it works very well.
I have a Hauppauge card in my desktop PC and I routed my aerial
through my satellite system before it gets to the computere. I get
terrestrial uhf, satellite and vhf radio all perfectly. Only minor
problem is getting the Hauppauge audio output setup correct, it has a
habit of losing its' settings.
If you have a weak signal try an amplifier. I use a distribution amp
to feed several sets around the house including the PC.