Bob Ross - The Joy of Painting - Season 20 is now available on iTunes! The Joy of Painting - Seasons 20 .\rbr\rbr\rbr\rbrBob Ross - The Joy of Painting - Season 20 is now available on iTunes! The Joy of Painting - Seasons 20 .\rbr\rbr\rbr\rbrMP3 version now available! If you like this, support your local PBS station: Bob Ross remixed by .