T: is terestrial, yes it aint spelt right
S: is for satilite
Most cards that handle vista should work with win7, i have a compro 350s and that works with dvbdream in win7, but is alittle grumpy now and again, which it is with vista anyway but thats got to do with compro crap that comes with the card, you wil have to get some h264 codecs for yer card + software, unless they come with some form of software that has the codec with it, i use core h264
Have a google for dvbs cards you should be able to find some that are alittle more advanced then my old dvbs card.As for HD i have a lnb which says HD onit , but wether you need an lnb that is dedicated to hd or not i have no idea, all i know is you need the codecs ie : h264
Gaz