The Jokers (TV story)

✅ The Jokers is an unproduced episode of Doctor Who. It was one of the original proposals that were eventually scrapped. (TEDW 12)

Plot
Ian and Barbara find themselves in alternative version of 1943 where laughter is against the law. But they meet a group of rebels, keeping the flame of humour alive.

Trivia

 * The later produced episode The Happiness Patrol featured a similiar plot, but, ironically, with the exact opposite concept, as in this story, it is against the law NOT to laugh.