Junior MastermindSeries 4Episode 2BBC One Duration: 30 minutesFirst broadcast: Mon 15th Jan 2007, 19:00 on BBC One North WestLatest broadcast: Mon 15th Jan 2007, 19:00 on BBC One WalesJohn Humphrys poses the questions as four contestants, aged only 10 and 11, brave the black chair to face specialist and general knowledge questions.BrandJunior MastermindSeriesJunior Mastermind: Series 4 Source: BBC Online