No card at all needed
Note I havent tried this since Setanta went of line but it worked fine before on TeleX and setanta, I have a Topfield PVR, maybe wait for smeone to answer that still has a nokia 221t to make sure it still works
if so have a look on ebay for a nokia 221T freeview box, thats all you need, should be able to pick one up for a tenner now, used be more expensive when you could enter the setanta Pids to get free footie, (but thats finished now) plug your aerial in and a scart lead, do an auto scan picks up all the usual channels, then do a manual scan for channel X, enter the Pid freqs into the boxes using the remote and thats it done