kind of an open ended thinking question. Search engines capture a minutes of attention per user per day and converts that into a high value CPM creating. Today the average person living in developed country watches for example 8 hours of Television. This yields X/per person. The internet captures a fraction of this.
We can assume that the ability to discern context, location and ideally intention of TV watchers will only get better. Converting the 8 hours of TV will eventually yield more value than the 2-3 hours of casual internet due to the ability to capture. An important thesis is that the 10 foot experience will always capture more user "attention" time than the 2 foot experience "with the exception of work".
Content is agnostic and will show up everywhere, but the interesting thought is how big the "TV" can get and the ergonomics will dictate where attention is spent. Any thoughts on 4 years out?