Here’s a good one. Spider-Man as a reluctant spokesman for Marvel’s short-lived Pizzazz Magazine. Pizzazz (“with more Shaun Cassidy pics than his mother…”) was published between 1977 and 1979 and 16 issues were produced. This TV spot was grabbed from the airwaves in May of 1978.
Previously, on Daily 70s Spot: Lavoris Mouthwash commercial (1976)