When “The Wiz Live!” airs tonight on NBC, one of the stars of the show will be Scooter, who plays the role of Toto in this re-imagining of “The Wizard of Oz” story. What makes this even more special is that Scooter, a 10-year-old Cairn Terrier, is a rescue dog, a student of world-famous trainer Bill Berloni. When he was called upon to find the “next Toto,” Berloni turned to Cairn Rescue USA in Chicago, where he discovered Scooter and his brother, Ralphie. The rest will soon be history. You can watch “The Wiz Live!” tonight at 8 p.m. on NBC.