Return of the Jedi in 70mm still pops up from time to time.
One reel came up on Ebay:
http://originaltrilogy.com/forum/topic.cfm/70mm-RETURN-OF-THE-JEDI-Reel-1-Near-Mint/post/655067/
Checking this list,
Looks like the theater I went to was in fact showing it in 70mm.
Team Negative1