DON'T MISS: "The Carol Burnett 50th Anniversary Special" – My, how time flies. It has been five decades since Burnett and her band of merry jokers took TV by storm with their groundbreaking variety show. In this two-hour special, Burnett reminisces about her favorite sketches, guest stars, studio audience Q-and-As and zany bloopers. She's joined by original cast members Vicki Lawrence and Lyle Waggoner, along with plenty of guests, including Jim Carrey, Kristin Chenoweth, Stephen Colbert, Harry Connick Jr., Jay Leno, Jane Lynch and others. 8 p.m. Sunday, CBS.