Didn't think this was too bad a deal, considering the next cheapest is £29.99 from Play. I think it's free delivery to store with the current offer.
Playstation PlayTV puts you in charge of what you want to watch and when you want to watch it. PlayTV turns your Playstation 3 into a recordable digital TV receiver and your PSP into a mobile TV. With PlayTV, you can watch, pause and record free-to-air digital television. PlayTV also lets you watch live TV while recording other channels. Plus, you can play PS3 games, watch DVDs or Blu-ray disc movies while recording TV at the same time. Connect PlayTV to your PSP and watch TV on the go.
Please note that you cannot watch TV directly on your PSP with this item - you must set your PS3 to Remote Play in order to allow for portable viewing