Series 4
1. Episode One
First broadcast: Wednesday 29th October 2014
Team captains Rochelle Humes and Melvin Odoom are joined by Jack Osbourne, TV presenter Alex Brooker, comedian Ivo Graham and pop star Ella Eyre.
2. Episode Two
First broadcast: Wednesday 5th November 2014
Team captains Rochelle Humes and Melvin Odoom are joined by Lacey Turner from EastEnders, Blur's Alex James and comedians Ellie Taylor and Rhys James.
3. Episode Three
First broadcast: Wednesday 12th November 2014
With guest panellists Kimberly Wyatt, Russell Kane, Romesh Ranganathan and Dane Baptiste.
4. Episode Four
First broadcast: Wednesday 19th November 2014
Team captains Rochelle Humes and Melvin Odoom are joined by pop stars Rixton and Stacey Solomon and comedians Ed Gamble and Sam Simmons.
5. Episode Five
First broadcast: Wednesday 26th November 2014
The regulars are joined by guest panellists Maisie Williams from Game of Thrones, actor and rapper Ashley Walters and comedians James Acaster and Iain Stirling.
6. Episode Six
First broadcast: Wednesday 3rd December 2014
With guest panellists Tulisa, Professor Green and comedians Seann Walsh and Tash Demetriou.
7. Episode Seven
First broadcast: Wednesday 10th December 2014
With guest panellists Dr Christian Jessen, boy-band Union J and comedians Katherine Ryan and Nish Kumar.
Christmas Special: Sweat The Christmas Stuff
First broadcast: Wednesday 17th December 2014
Nick Grimshaw hosts a very festive episode of the comedy panel show. With Strictly Come Dancing's Pixie Lott, rock star and judge on The Voice Ricky Wilson, comedian and Hebburn actor Chris Ramsey, and top stand-up comedian Bobby Mair.
Highlights Special
First broadcast: Wednesday 7th January 2015
Grimmy, Rochelle and Melvin choose their highlights from Series 4, looking back at guest appearances from comics and celebrities including Pixie Lott, Tulisa, Lacey Turner and Jack Osbourne.