They already give priority in their cable packages, and they already own Hulu.
Content delivery is controlled by content creating big media IP holders. Obviously they will try to keep competition down, especially new media that understands how the Internet makes information free.
I think it will primarily be determined by who can support (fund) the artists who are making the content people want to watch.
Of course, easy, essentially-free, world-wide distribution will make it harder for RIAA and MPAA to maintain control over the flow of mainstream art.
Viewer-funded (or even mini-investor funded) models could be viable. I'd imagine they could even compete favorably with large production studios if the right structure was found.
What do you mean? Comcast/NBC will only let RIAA and MPAA broadcast over their networks? No indies?