Postman Pat (1981)

Season 1: Episode 6

Pat has to deliver some eggs and a registered letter to some campers. The letter is too valuble to leave and the campers are at the waterfall. Pat's van can't travel the bumpy road so Miss Hubbard borrows a tractor and takes him on a rather bumpy ride to the waterfall. When Pat returns to his van, he sees that a hen has got in and laid an egg!