SPECIAL: Once again, film critic and historian Leonard Maltin guides TCM viewers on a personal tour through the Disney vaults. All of the cartoons, shorts, and movies shown tonight are TCM premieres – and while the movies are marginal, the cartoons are fun, and some of the shorts and compilations are invaluable. The best of the best tonight includes A Trip Through the Walt Disney Studios (pictured, 8 p.m. ET), a 15-minute short that’s so fascinating because it was made in 1937 – the same year as the landmark Disney cartoon short The Old Mill, and the studio’s first full-length animated feature, Snow White and the Seven Dwarfs. Also, at 8:15 p.m. ET, TCM presents The Best of Disney’s True-Life Adventures, a compilation that includes clips from several of the studio’s live-action, animal-filled stories. And later, Maltin rolls out the vintage Mickey Mouse cartoons, with 1937’s Moose Hunters (3 a.m. ET), 1939’s Society Dog Show (11:15 p.m. ET), and 1948’s Pluto’s Purchase (1:15 a.m. ET).