I found season 2 on secondspin.com for $31 after coupon. They had season 1 for $50 or so I think. It's been a while since any have popped up on there, people don't tend to get rid of the doctor. Amazon currently has them all priced at $58.99. It's hard to find any BBC show for a cheap, or even reasonable, price... although I did find season one of Coupling in a $5 bin at a local used store.