TVCatchup is an internet television service for viewing certain UK channels from free-to-air digital terrestrial and satellite broadcasters live without the use of a television receiver. The service re-broadcasts BBC, ITV, Channel 4, Five and free to air Sky channels. Initially the legality of the service was questioned causing it to be suspended. The service was relaunched minus the network PVR functionality offering a roster of TV channels upon free registration. As the service permits the viewing of live television channels a TV licence is required. The service is only accessible in the United Kingdom. The service is funded by advertising, with a pre-roll advertisements preceding the live channel stream.
Channel list http://www.tvcatchup.com/channels.html
Now works on the iPad!