Happy Days aired its first episode on ABC 52 years ago today. The show ran for 11 seasons from January 15, 1974 to July 19, 1984. This intro is from Seasons 3 and 4. You can see the original Season 1 intro featuring “Rock Around the Clock” in my stories. Side note: Scott Baio (Chachi) isn’t shown here because he didn’t join the series until Season 5. Fun Fact: Laverne & Shirley was launched as a spin-off of Happy Days. The two lead characters were introduced as acquaintances of Fonzie (Henry Win