Question: Did Robert Downey Jr. refuse to appear on the show with the dancing baby?, Answer:No, Description of Robert Downey Jr.: American actor, Fact1: Ally McBeal was a successful sitcom in 2000., Fact2: Ally McBeal's show opener starred a dancing baby., Fact3: Robert Downey Jr. appeared in Ally McBeal.
Step1: What show featured a dancing baby?, Step2: Did Robert Downey Jr. never appear on #1?, Wikipedia page for step 1: Ally McBeal, Wikipedia page for step 2: Ally McBeal, not_definitive_answer: False, incorrect_answer: False