The same is true for "Lost" and "Night Stalker," as well as a couple Disney shows.
Now that is truly inspired. If they had Grey's Anatomy on there, I would definitely buy last week's episode (the one and only one I have ever missed) in a heartbeat, no ifs, ands, or buts about it.
That said, I cannot tell you how much I want a Video iPod now. Dammit.