This article needs to be updated. The reason given is: Intro needs updating. Please help update this article to reflect recent events or newly available information.(May 2019)
Series 2 began on 23 January 2015, with a Christmas special aired on 16 December 2015. Series 3 began on 8 January 2016 and series 4 began on 4 November 2016.[3] A fifth series was filmed from 17 November to 10 December 2017.[4] Series 6 was the first not to be aired on Fridays, with it airing from 3 February 2019 at 8.30am for 12 weeks. After this series, it was announced that Stirling was leaving the show.
In series 7, four different presenters hosted three episodes each. Hacker T Dog was the first of these confirmed. Lauren Layfield, Suzi Ruffell and Darren Harriott also presented three episodes each. It was later announced that Layfield would host the show permanently from Series 8, joined by Reis Daniel playing the lovable Mr. Learner.
Format
The show features two teams, both with a CBBC star, a comedian and a child. They compete in various games and tasks. The winning team get a gold star. Stirling can take, or give, gold stars whenever he wants. He usually gives them when an answer makes him laugh. Whoever has the most gold stars wins the game.
In this special episode, Iain Stirling takes on the role of Stirling Holmes. As the world's greatest detective, he is trying to solve the strange case of the missing homework... which has been stolen by evil genius Professor Dogiarty.
Susan Calman, Dan Wright and Dodge T. Dog are the only panelists to have featured in every series. However, none of them featured in the stand-alone Christmas special. As of April 2019[update], Calman has not appeared in an episode of the show since Season 4.
The following have all made a single appearance as one of the guest panellists on the show:[6]