Anybody who looks at pricerunner before anywhere else is likely being ripped off most of the time...
To the op: If you are OK with 22" than you will get yourself a nice TV for £200.
I recently bought a 22" LG HD Ready (so not full HD but meh it seems to scale well when i feed it full HD from my PC via HDMI) for £160, not a special offer, current model just walked into a high street based AV specialist (very well known internet presence too) and bought it from them.
Does the job nicely.
TBH, i'd avoid the one you have posted as even though its a bit cheaper at £149, DVD players are about the cheapest thing you can buy these days and having it integrated, when it goes wrong (and it will) you have to send the whole TV back, also ime, it's just not worth buying very cheap TVs, iirc Digimate are a supermarket own brand. While the panels are mostly OK, the menu systems and general interactivity is always poor, as is any technical support should you need it.
EDIT: No, they are the budget brand all the C retailers have, now I remember. I used a DGM 19" TFT once, it was OK, certainly not brilliant though.