I read / heard about this today: George Lucas is buying up film rights for dead movie stars. It seems that the intention is to use them in movies, or commercials, or something. Either way I was reminded of this (slightly), and wanted to share:
The Critic, "Dr. Jay"
http://www.youtube.com/watch?v=Qr1Jm5cK2b4 (Part 1) (skip to 4:50 if you don't want to watch the whole thing)
http://www.youtube.com/watch?v=bFD47bTQs_o (Part 2)