I have not tried one yet, but if the quality is even decent, then this is a great thing.
Even though I RARELY miss even 1 episode of my favs. (ex. Heroes), if just by chance the power goes out, and the DVR misses/messed up.
Then I would pay 1.99 to watch an episode I missed (but only for my favs.)
Edit, oh yeah, they are DL'ing much faster now.
See screenshot.
(the only one I have not seen (from DVR) is Bionic Woman)