BBC Four HD

Programmes start at 7.00pm.

Coverage of day 5 of the World Snooker Championship at the Crucible Theatre, Sheffield.

Tensions mount as jealousy, lust and shame combine to test the five flatmates. Contains some strong language and some scenes of a sexual nature.

The life of the most glamorous plane ever built, as told by the people whose lives she touched. Narrated by Sophie Okonedo.

A look at how an international team of scientists is trying to change people's perceptions of sharks. However, their breakthroughs come at a time when many sharks face extinction.