Quiz:

Child Genius, 8pm, C4

There are 10 contestants remaining in this fascinating contest and tonight they are put through their paces at the semi-final stage. Host Richard Osman has some tough challenges in store for them though. In order to book a coveted place in the final the youngsters must come through a rather gruelling language and comprehension round before being faced with a fiendish spelling test. Among those hoping to make it through to the latter stages are brother and sister Georgia and Stephen as well as Rhea, whose mother gave up a career as a GP to focus her efforts on her daughter’s education and front-runner to win the whole event Mog (left). Prepare to marvel at the youngsters’ efforts tonight.