Watch Ant & Dec's Saturday Night Takeaway Season 12 Episode 5 Online

Stephen Mulhern finds himself at the mercy of the Geordie duo as they once again go undercover, Ashley Roberts oversees this week's round of Ant v Dec, and the guest announcer is this year's Oscars host Neil Patrick Harris, getting in some practice before he takes the reins of the American version of Saturday Night Takeaway. Plus, the Supercomputer hits the road again and a member of the studio audience plays to win the contents of a commercial break