TJR--I agree with you about bittorrent, if it's run as I suspect. (Again, I've never looked at it.) My posting of the Fox myspace link was only to provide another option for those who prefer to do that.
I do know that even with what you say about over-the-air TV shows, which I fully agree with, some of the networks have in the not-too-distant past applied significant legal pressure on some places that have posted their shows, including some non-sanctioned youtube and myspace posts. For whatever reason, it's clear they don't like the extra exposure.
I'm not a big fan of the Fox myspace episodes myself. In large part because the last time I used it (last fall, to get caught up on several missed Prison Break episodes), all the "regular" ads in the episodes had been replaced by non-skippable ads for the movie Saw III. I have nothing against Fox including ads in those online episodes, but I really dislike bloodfest movies like Saw III, and didn't care for being forced to watch those ads over and over just to see Prison Break. I'm not sure what ads might be running, now that Saw III is out of theaters. With my luck, it's now all ads for the Saw III DVD...