Cheap USB tuner for PC and PS3. It's a dual tuner (so you can record/watch at the same time).
You can use it on Windows/Linux, details here: http://whirlpool.net.au/wiki/ps3_playtv
It has been cheaper previously and this is pre-owned but still a good unit.
Available both in-store and online.
I have 4 VAIO's. One is a JS desktop. Still to this day, I feel that I am the only person in the world who purchased a VAIO desktop PC.