Documentary Shows on TV Tonight

Sam West and Adrian Edmondson visit the flooded Somerset Levels in search of a bittern, Britain's loudest - and possibly most mysterious - bird. At RSPB Ham Wall, the search for the bittern is proving tricky, but they're rewarded by a pair of Great Crested Grebes who put on a dazzling display for them both. While talking hobbies, Adrian confides in Sam about the real reason he needs to keep busy.

A new set of incredible amateur cooks take on the MasterChef heats hoping to secure a quarter-final place. Their first task is to serve up an impressive signature dish.

When asylum seekers' futures are argued before the High Court, questions of borders, power and national identity are laid bare.