 Jesse Frederick James Conaway is best known for writing and performing the theme to an American sitcom that was a spin-off of what series? 
Jesse Frederick: Jesse Frederick James Conaway (born 1948), known professionally as Jesse Frederick, is an American film and television composer and singer best known for writing and performing the themes to TGIF television shows such as "Perfect Strangers", "Full House", "Family Matters", and "Step By Step" for ABC. Family Matters: Family Matters is an American sitcom which originated on ABC from September 22, 1989 to May 9, 1997, before moving to CBS from September 19, 1997 to July 17, 1998. Family Matters:  A spin-off of "Perfect Strangers," the series revolves around the Winslow family, a middle-class African American family living in Chicago, Illinois.
Perfect Strangers