Bob Ross - The Joy of Painting - Season 20 is now available on iTunes! Subscribe to the official Bob Ross channel for more.\rbr\rbrBob Ross - The Joy of Painting - Season 20 is now available on iTunes! Subscribe to the official Bob Ross channel for more.\rbr\rbrBob Ross - The Joy of Painting - Season 20 is now available on iTunes! The Joy of Painting - Seasons 20 .