Warner Bros. Discovery might has the largest cartoon library in the world, probably even larger than The Walt Disney Company. Warner Bros. Discovery not just owns the Looney Tunes/Merrie Melodies cartoons, but also about every Hanna-Barbera, former MGM, pre-1991 Ruby-Spears, DC Comics and post-1974 Rankin/Bass cartoons. Also, the cartoons made in Cartoon Network Studios and Williams Street Productions (formerly known as Ghost Planet Industries) as well.