So nice, they did it twice! The Fangirls are back to take a second spin around the theme song block. But this time, it's cartoons! From the under appreciated Underdog to the bubblegum pop of Scooby-Doo, the ladies countdown their favorites from the '60s and '70s. And this week in fangirling: Universal Horror Nights, Riverdale Season 3 (maybe?) and The Device.