Last appearance of Ricky Allen as Chip's good friend, Huey "Sudsy" Pfeiffer. He would appear two more times in the series but as totally different characters: in Season 7 as Hoby in The Good Earth (1967) and in Season 10 as Larry in Rough on Dodie (1969).
The last of over thirty appearances of Ricky Allen as Chip's friend, Huey 'Sudsy' Pfeiffer. He would appear as two other characters in the show several seasons later. There was no explanation in any story line of any episode for "Sudsy"'s departure; he simply stopped appearing. In season 4 the character of Ernie was introduced as Chip's friend; later, as an adopted son, Ernie would become a series regular when eldest son Mike left the show.
This season 3 finale is mostly made up of footage from an unaired season 1 episode represented as a flashback.