I found out about this TV while speaking to an LG rep in Curries (of all places). I haven't seen this TV but I phoned up John Lewis and apparently it has a 2.5cm crack at the back of the TV but not affecting the screen. It's actually a customer return rather than display model.
I badly want this TV but I am just not sure about spending that amount of money on a TV. But this sounds like an absolute steal. Apparently there is a 65" version as well.