The Wizard of Oz, whose 50th anniversary was celebrated last year with a special home video edition, gets a similar treatment on broadcast TV. The Wonderful Wizard of Oz: 50 Years of Magic (8 p.m., CBS) occupies all of prime time. The newly restored movie itself is run in its entirety. Then, Angela Lansbury is host for an hour-long look at the making of the 1939 musical classic. Included are outtakes from the movie and home movies shot on the set, including the famous cut Jitterbug number; screen tests of actors who were ultimately rejected for parts in the film, behind-the-scenes looks at the movie's special effects and excerpts from interviews with stars Judy Garland, Ray Bolger, Margaret Hamilton and Jack Haley done in later years, sharing their memories of the MGM production. This is the 32nd time that The Wizard of Oz has run on network TV. CBS showed it for the first time on Nov. 3, 1956. CBS has owned the rights since that time, except for a seven-year period in the late 1960s and early 1970s, when it was an NBC property.