Join Sam and Mark for more hilarious pranks and festive surprises. There are brand new games and fantastic guests, including Kimberly Wyatt and Hacker T Dog.

HRVY makes a surprise appearance to give a superfan the surprise of her life! Stars of Operation Ouch the van Tulleken twins go undercover in a viewer's house to carry out secret medical missions. There's a game of Karasoake, and Ben Shires takes questions and selfies from the audience.

Star of Strictly Come Dancing AJ Pritchard gives one girl the surprise of her life in the studio. Two stars of Coronation Street go head to head with Sam and Mark in Face Off.