Sam and Mark get the party started with their special guests the Sugababes. In a show full of hidden camera pranks, three kids end up helping with a fictional Olympic bid. Show more
Sam and Mark get the party started with special guest Joe McElderry and music from Six D. Plus, the boys go undercover in Bradford. Show more
Sam and Mark get the party started with their special guests Joe Swash and Nicola Roberts, in a show full of surprises and wind-ups. Show more
Sam and Mark get the party started with their special guest Loick Essien, who performs Me Without You in a show full of pranks and wind-ups. Show more
Sam and Mark get the party started with their special guest Stacey Solomon and music from Rizzle Kicks and three kids get an access all areas tour of CBBC. Show more
Sam and Mark get the party started with their special guest Ronan Parke and 'Magician Impossible' Dynamo drops by to bamboozle the audience. Show more
The Wanted join Sam and Mark in the studio to perform, and surprise a couple of fans. Plus one family in the audience takes home the ultimate prize - either Sam or Mark!
Sam and Mark get the party started with Daniel Anthony from The Sarah Jane Adventures, and music from Cover Drive. Plus three kids get an exclusive glimpse of a Doctor Who alien. Show more
Sam and Mark get the party started with their special guest Pixie Lott, who performs All About Tonight, and the boys go undercover in London to surprise two viewers. Show more
The Saturdays join Sam and Mark in the studio to perform two of their biggest hits. Plus one family in the audience takes home the ultimate money-can't-buy prize. Show more
Sam and Mark take their hidden cameras on the road to prank some viewers in Yorkshire and one family take home the ultimate money-can't-buy prize. Show more
Sam and Mark take their hidden cameras on the road to prank some viewers in Wales and one family take home the ultimate money-can't-buy prize. With music from Oh My! Show more
Entertainment show. Sam and Mark get the party started with their guests Parade, who perform their song Louder. The boys go undercover in Altrincham to surprise two viewers. Show more