I wouldn't say it's for the installing on a mobo especially, more like a TDX box, which you can set up tv channels for a whole flat complex.
I've had some experience with setting up anolog and satellite antenns you use the card on a output signal:
PAL, QAM, COFDM or IP module which have a slot for tv cards,
installing a tv card on to your mobo will allow you to tune in tv signals.
also allowing you to record programs