My kids have a 22" they use with their computer. This one, in fact:
http://www.currys.co.uk/gbuk/logik-l22ldvb21-full-hd-22-led-tv-with-built-in-dvd-player-10122913-pdt.html
It's passable, but not exactly great. Despite being LED backlit, the picture quality is quite directional with a narrow sweetspot, which isn't an issue seeing they mainly use it as a computer monitor, but otherwise it'd be a bit naff. The colours also lack dynamic range imo. When you first plug it in everything's like glorious technicolour (probably so it looks bold and punchy as a shop display) but if you try to tame it a bit by adjusting the colour setting you just end up with pink reds (etc). Oh and forget the speakers, they sound about as good as an old handheld AM radio.
I know all that's probably not comparable to what their larger sets will be like, but I don't get the feeling that it's at all a quality brand. In fact I think it's one of Dixons Retail's own brands, as I've only ever seen it at Curry's/PC World