Tivo currently does this (albeit without a bit torrent option) for upcoming live TV, Comcast on-demand, Hulu Plus, Amazon Instant Video and Netflix. There may b

Tivo currently does this (albeit without a bit torrent option) for upcoming live TV, Comcast on-demand, Hulu Plus, Amazon Instant Video and Netflix. There may be more now, but those are the ones I use. You search for a title and it will tell you where it's available and you can watch it from any of them directly from the Tivo UI.