Happy Days - Season 10 Episode 10 All I Want for Christmas Those were the days of the 1950's...filled with innocence and the promise of even better days to come.
Overview: When Heather asks Santa to patch up the rift between her mother and grandparents, Fonzie decides to make her wish come true. Meanwhile, K. C.'s parents visit for Christmas, and a rivalry between Howard and his brother reignites.