Benoire: I said this before in the thread, but I do not believe Internet based TV is currently viable. The distribution methods are far more variable with many factors that change the experience. As a catch up system, it would be fine but a primary first time distribution it is quite poor.
A new dimension for Internet based TV has just been added with Vodafone unveiling their UFB based multicast service here. This can probably provide a very stable HD service, direct to a TV set-top box which probably has PVR capabilities. This seems to tick a number of boxes.
However, it is a pity it will be multiple years before the bulk of the population can access the service and it would need commercial agreements with this major provider to allocate some of the channels for a "thru" type service for the content distribution model mentioned earlier. It will be fascinating watching how all these methods develop.