That already happens anyway, especially during live sport. In addition to that is the endles increase in on-field ads, the billboards around the perimeter fence, commercial breaks and the usual BS at the beginning and end of the programme - "This programme was brought to you by <List 30 sponsors here>".

There is one alternative that is better - watching a Government owned broadcaster, NO ADS AT ALL! :-) The 7pm news on the ABC in Australia rocks.