"Best Friend" by Harry Nilsson is better known as the theme from The Courtship of Eddie's Father. Bill Bixby and Brandon Cruz played father Tom, and son Eddie in the ABC TV sitcom that debuted in 1969. The Courtship of Eddie's Father was based on a 1963 film of the same name. Both are based on a novel by Mark Toby. During its three year run, many familiar or up-and-coming actors guest-starred on the show including: Jodie Foster, Sally Struthers, Suzanne Pleshette, Cicely Tyson, Tippi Hedren, Jer