As far as the repost protection, there is development for a system that uses image pattern recognition to flag frames in clips and then rescan the any new postings to make sure there are no consistent frames. This works on cartoons and most time on movies, even if you resize them, or crop them. It’s slow for now, but I would not be surprised that they would at least scan for logos of TV stations and then flag clips for a full frame scan. I do not know if that’s what MySpace is using, but technology is there. Just like a way fancier OCR. So, probably filtering out TV station logos is a good idea if you are a youtube or myspace poster.

Even if they do byte patterns for now, you would probably still have to recode, depending on how good their system is.

for example if a show usually get about 6 million viewers and all of a sudden people put full episodes on there meaning more people could miss the show and still be able to watch it their views would go down to a level than would be considered flop

I could understand if it was full res videos that are taking away from DVD sales or TV ad revenue, but these are grainy low res clips that people are using to show what stuff they like.

If anything these sites offer free advertising for the shows/movies that are featured.