Love, American Style was usually at the bottom of ABC's lineup during the course of its 5 year run (1969-74), largely due to the adult themes in some episodes. Nonetheless, reruns found their way into the network's daytime lineup during the early 70's, and, eventually, into syndication.
The anthology format used on the show was later perfected by Aaron Spelling for The Love Boat, augumented with unconnected story arcs weaving in and out of each episode, a tactic Spelling also used on Fantasy Island.
The Cowsills performed the show's theme the 1st season, but a studio band credited to musical director Charles Fox, took over with season 2. The theme won't be heard in this season 1 entry. Guest stars include Paul Winchell and Henry Gibson.
Love, American Style, however, is best known as being the home to a backdoor pilot for Happy Days. The episode was originally titled, "Love & the Television Set", but was changed to "Love & the Happy Days" for syndication. Curiously, while Richie Cunningham (Ron Howard, ex-The Andy Griffith Show) narrated the story, this device was not used when Happy Days went to series. As we all know, Harold Gould was the original Howard Cunningham, but due to film commitments ("The Sting"), Gould was unable to return for the series, opening the door for Tom Bosley to take over, and the rest was history. I believe Love also housed a backdoor pilot for Hanna-Barbera's Wait 'Til Your Father Gets Home, which also starred Bosley.