That was the idea behind the IDTV. Every TV would have the equivalent of a Set Top Box (STB) built in, and so it wouldn't matter. Of course in practice this has proved not to be as simple as it first seemed. I don't know of any IDTV that has a built in Sky decoder (will Sky even licence it?!) and I beleive even the OnDigital IDTV have suffered from the lack of a Conditional Access Module (CAM). The government ruled that analogue cannot be switched off until digital TV is available to some high percentage of the population (95%? I can't recall the exact figure). Note the word 'able'. It means that if some form of digital TV is available in your area they can switch off analogue even if people are still receiving it...these people will be forced to get digital TV if they want to continue watching. Given the problems surrounding this whole thing (there was some early plan to have the digital broadcasters pay for replacement of VCRs etc, but this was soon dropped) I don't know if the government have revised their criteria for switching off analogue...but I doubt it very much.