Mission: Impossible (TV Series 1966–1973) - Connections - IMDb
Are You Being Served?: Take-Over  (1977) (TV Episode)
When Mr. Rumbold says that what he is about to tell the staff is absolutely top secret, Mr. Humphries jokingly suggests that he will then "self destruct in a puff of smoke", which is what the messages always used to do on Mission: Impossible.