I still consider this 1939 family classic a holiday tradition – but any time it’s televised, I feel compelled to point it out. Tonight, TBS shows The Wizard of Oz twice, at 7 p.m. ET and again at 9:15. The good news is, it’s on a Saturday night, the weekend before Thanksgiving, when families already may be starting to gather. The bad news is, TBS presents the movie with commercial interruptions – something you won’t have to endure if you wait until the film is shown by sister network TCM.