Sally Gray (1997-2002)
Angellica Bell (2003-4)
Sophie McDonnell (2005)
"Flynn" the Computer: Matthew Davies, Dave Kelly
BBC Scotland for BBC 1, 7 April 1997 to 26 December 2001 (61 episodes in 5 series + 4 specials)
BBC Scotland for CBBC, 25 March 2002 to 12 July 2005 (57 episodes in 4 series)
More imaginative than usual kid's shows, 50/50 features two teams of 50 children from two different schools.
Each child has a number between 1 and 50, and in certain rounds random numbers were picked, for example, number 17 and 42.
The appropriate numbered contestants from each team come out from the audience to play a typical skill-based game (usually involving inflatables of some kind) on behalf of their school.
The quiz elements either involve all 100 contestants at once, by pressing their buttons to choose the answer to a multiple-choice or True and False question, or by picking out an individual numbered player to answer a question.
Good format, even though it suffers from the usual ploy of "Let's double the points!" for the final round.
Satisfyingly loud klaxons go off if any of the kids get help from their friends during the individual quiz rounds.