I'm going to assume that the Topic of the Day does not include specific productions in which I was involved...whether acting or tech.
Movies: 1776, Scroooge, The Wizard of Oz
Stage Musicals: Rent, A Rock 'n' Roll Twelfth Night (a local company wrote it and presented three different productions over the years...it's a great show!), The Rocky Horror Show (I've actually only seen the movie twice)
Plays: I don't think that I've seen any play more than once.