Well we'd had our Samsung LE40B650T2 40" LCD TV since mid-May and decided we weren't entirely happy with it so took it back to Costco a few days ago. Got a cash refund on the spot and came away with a Sony KDL-40NX503 (with built in HD Freeview tuner) which we're delighted with so far. With service like this, a 90 day exchange policy, a 5 year warranty on TVs etc. and prices decent reatilers usually can't match we'll continue buying from them.
