You're going to have to give specifics as to what you're looking for. Namely, the following:
- Features are you looking for (Do you need both the TV tuner and image capture, do you need the card to take inputs from game consoles, etc.)
- Local broadcast standard (ISDB, ATSC, DVB, etc.)
- Internal or external (Do you prefer it inside your computer's case or as a box connected by USB?)
Without any detailed information, I can only give general suggestions.
If you live in an ATSC broadcasting region (South Korea, Canada, United States, Mexico):
If you live in a DVB broadcasting region (most of Europe):
(BlackGold makes a lot of these)