I don't know if this deal is national or only store specific - Cardiff.
On Amazon the same TV is for £829 without 5 years warranty.
Specification for TV:
VIERA Full HD LED LCD TV
Freeview HD & Freesat HD Built-in
IPS LED LCD
Intelligent Frame Creation Pro
Dynamic Contrast 2,000,000:1
Wide Viewing Angle with IPS Panel
VIERA Image Viewer (Photo and Video)