Co-worker mentions to me a few weeks ago, "I was on The Gong Show once." I ask him to tell me more and he says, "Well, not much to tell. They were doing a bit where they wanted a bunch of people to interrupt a contestant's act and Chuck came up to me backstage and said 'Howard, I'm pulling you off curtain duty today. Wanna be on camera?'"
We've been co-workers for five years and he just now mentioned that he worked on "The Gong Show." Went straight home from work, pulled out the episode, and by golly, there he was.