My first post, so hope ok.
This highly rated Sony TV is the Deal of the Day on M&S. It's listed at £649 for today only, but M&S are also keeping VAT on electricals at 15% for a couple of weeks, so when you get to checkout, the VAT is reduced, bringing the price down to £634.11. Take into account 5% Quidco cashback, and you are just breaking £600 which is great when you take into account the 5 yr warranty M&S offer. This TV is £649 on Amazon, without the extra warranty.
The full detail of the TV is detailed on the link, so I haven't posted it here which I hope is ok.