I'm looking forward to using my next trip to the UK as an opportunity to buy some British TV programs that have been released over there but not here. (I have a region-free player.) Last summer, I glimpsed a BBC Shop from a passing bus near Regent Street but didn't have time to go back to it. However, now I hear that the BBC Shop I saw is closing.

So my question is, what chains or shops have the best deals on DVDs? I'm sure there are plenty that sell them for full price, but are there any discount chains that sell DVDs for below list price?

Or am I better off just mail-ordering them from one of the online discounters?