It's impossible to separate Bob Ross, artist from Bob Ross, television personality. Ross taught wet-on-wet painting on television for over a decade. He learned the technique from an earlier television artist, Bill Alexander, while he was serving in the Air Force. Each segment featured Ross creating a painting. Being a perfectionist, Ross created three copies of each work: an original, placed offstage for him to reference, the painting he created during the show, and a final copy to use in his instruction books. He also donated many of these paintings to public television stations, which makes finding a Bob Ross painting for sale an unusual occurrence.