Crackerjack!

Sam and Mark are joined by Tessa McGuire - aka Tessa Bear. Meanwhile, Flawless provides the dance moves, and Nutty Noah plays a medley of hits with his hornophone .

Blue Peter stars Richie Driss and Mwaksy Mudenda join Sam and Mark in the studio. There is magic from Graeme Shaw and a very messy Splatterjack!

Andy and the Odd Socks join Sam and Mark in the Crackerjack! studio to provide the music and join in the fun. The Crackerjack! Players demonstrate the ancient art of Gunge Fu.

Sam and Mark are joined by Newsround's Martin Dougan and Shanequa Paris., ventriloquist Max Fulham, and there is a tense edition of Double or Drop!

Sam and Mark are joined by online stars the Neffati Brothers. There is comedy from the Harper Brothers, and top prizes are on offer in Double or Drop.

Sam and Mark are joined by comedian Jason Manford for another helping of Friday fun, which includes a crazy magician and some spectacular acrobatics!

Sam Nixon and Mark Rhodes host another entertainment-packed Crackerjack! Guests include Joe Tasker, Harpz Kaur and Kidz Bop. There is an amazing contortion and magic act, lots of games and prizes for the contestants to win and comedy from the Crackerjack Players!

Hosted by Sam Nixon and Mark Rhodes, Crackerjack gets the new year off to a flying start. Sports pundit Chris Kamara joins the gang in the studio, along with a comedy trampoline act and an incredible string trio. Brand new games, surprises and fabulous prizes await!

Sam and Mark host a bumper edition of festive fun! Naga Munchetty and Charlie Stayt play an extra-messy game of Splatterjack and there is music from Becky Hill.