hi
to Cable Forum
if you bypass the STB, you will not get any of the encrypted channels, only terrestrial & 'free to air' (not the same as Freeview) ones.
as for TV cards - there are a lot to choose from - try this link
http://computing.kelkoo.co.uk/b/a/c_..._tv_cards.html
- for stand alone cards, I'm assuming you are not looking for a combined graphics/TV card
