Jimmy Fallon April 24, 2015 4:10 am WATCH: Monty Python's John Cleese Replaces Jimmy Fallon as Host When Monty Python’s John Cleese gets tired of sitting next to Terry Gilliam, he and Jimmy swap seats. US & World Videos 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look