Looks like a very good deal for the TV with the soundbar :-
1. Comes with 5 year warranty and it being tesco you get clubcard points - 499 will make it 5 pounds roughly - or with boost etc. possibly more -
2. And the soundbar seems to sell for around 70-80 on ebay - if you didn't need it bringing the price of the TV down to 419
A better deal to me then the Curry's one which was posted earlier, where you had to pick it from store and rely on O2 priority - this has free delivery and no hassles of snagging an O2 priority voucher etc.