I've spent weeks deciding what TV to buy for gaming and of course watching TV and Football. I'd been looking at sets of up to £400 and at every point I felt I would have to make compromises on something, especially as I wanted a 46inch+ TV. Then I came across the Sony Outlet store and the Sony KDL42W705B smart TV. While it is only 42inch HDTV Test website gave it a 9 out of 10 "Boasting the lowest input lag we’ve ever recorded" and Trusted Reviews also gave it a 9 out of 10.
At £380 plus free delivery this is £140ish cheaper than I've seen it elsewhere brand new and is the 2014 model. They also have the 3D version for £420
It also comes with a 30 day money back guarantee and 12 months warranty.