Sam and Mark gets the party started with their special guests The Sugababes.
Sam and Mark get the party started with special guest Joe McElderry and music from Six D.
A festive episode, packed with Christmas surprises. Imperial stormtroopers from the latest Star Wars movie invade the studio to surprise a fan. The audience take on an extremely soggy singing challenge in Karasnowke, embarrassing parents are banished to the School of Shame and two families go head to head in the ultimate final challenge Ball Fall. The Vamps play their latest hit in the studio.
Tom Fletcher joins Sam and Mark in the studio to kick off the 2017 series. There's the world's wettest singing contest 'Karasoake', punishment for embarrassing parents at the 'School of Shame' and chart-toppers Ward Thomas perform in the studio.
Stars of The Dumping Ground surprise two of their superfans. Sam and Mark go undercover in In Yer House Extreme and there's music from boy band Union J.
Comedian and presenter Iain Stirling and Californian boy band The Tide join Sam and Mark in the studio to kick off the weekend. The boys take on two Olympians in a 'Face Off' challenge, and who will survive the avalanche in Ball Fall?
Sam and Mark are joined by Matilda Ramsay as she takes a turn on the Wind-Up Wheel. Two sets of twins from the same family take on each other to win a stash of prizes, and there is music from Gavin James.
Wrestling star Nikki Bella surprises her biggest fan in the studio, Johnny and Inel take on Sam and Mark in a singing challenge and Eurovision performers, Joe and Jake, perform their latest song.
Sam and Mark kick off the weekend with another show packed full of surprises and pranks. Five more embarrassing parents get the School of Shame treatment and The Voice winner Kevin Simm performs in the studio.
Hacker T dog and Simeon Qsyea from Taking the Next Step join the boys in the studio to surprise their biggest fans. Sam and Mark take on Jedward in Newcastle for a comedy challenge and there's music from X Factor winner Ben Haenow.
Wolfblood's Leona Vaughan joins Sam and Mark in the studio. There is also music from singing sensations Collabro, and the boys embark on their toughest In Yer House challenge yet.
Olympic medallists Beth Tweddle and Nile Wilson join the boys for more surprises and weekend wind-ups. A Beyonce fan takes to the air to win a fantastic prize, parents get wet in Karasoake and Bars and Melody perform their latest hit.
Sam and Mark visit a relationship counsellor who encourages them to look back on some of their happiest times together from the series. Featuring plenty of wind-ups, laughter and music to kick-off the weekend.
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
Art Ninja Ricky Martin goes In Yer House to carry out a secret mission. Lindsey Russell surprises a superfan in the studio, plus there’s music from Madagascar: The Musical!
Union J star Jaymi Hensley takes on a risky mission in the home of a big fan. A member of the studio audience is surprised by one of her heroes from CBBC drama The Worst Witch.
Dengineers stars Joe and Lauren take on a clowning challenge against Sam and Mark.
Rak-Su take on Sam and Mark in the most physically demanding Face Off yet.
Star of Hetty Feather, Polly Allen, takes on five missions in the home of one of her biggest fans. Millie Innes of Millie Inbetween surprises a member of the studio audience.
Pop duo Max and Harvey surprise a superfan in the studio and provide the music. Melvin Odoom and Rickie Haywood-Williams take on Sam and Mark in a radio Face-Off challenge.
Stars of The Dumping Ground join the boys to surprise their fans in the studio. Naomi Wilkinson has a total disaster in this week’s In Yer House. There’s more super wet singing in Karasoake and HRVY performs I Don’t Think About You.
Someone gets a chance to win some prizes that are out of this world! Bars and Melody take questions and selfies from the audience and there’s music from Samantha Harvey.
