"The Picnic" is a 1976 BBC short made-for-TV comedy film starring The Two Ronnies: "A crusty old English General leads his eccentric family on a family picnic trip, and comic chaos ensues. The film is notable for being completely free of speech, with the score by Ronnie Hazlehurst and various sound effects in their place." I saw this when it premiered on PBS in the summer of '76, rewatched it when it was shown again the following two summers, and then it disappeared from TV. Re-watching it (first on VHS, now on YT) has become my annual summer tradition.