Sketches feature the world's most dangerous suitcase, 18th-century housemates grappling with the toilet, a foul-mouthed family feuding in a sweary Aussie drama, a porn star with a big spanner, and a villain with a flawed plan.

Mitchell and Webb introduce TV's shallowest game show, explore the world's scariest film, and examine mobile phone etiquette while committing a murder.

Sketches include a very bad spy, TV's least exciting reality show, and some puritans trying to out-puritan each other.

Sketches include a teacher misunderstanding the job, an actor searching for the perfect last words, and the late, great EM Forster popping up in the wrong century.

Sketches include the real reason behind climate change, a wholesome heirloom repair show, a death in the sweary Aussie family, and lawyers intervening in the writers' room.

Sketches include the disturbing side of communal living, a surprising way to assess new teachers, parents dealing with an unusual announcement about their daughter's sexuality, and aliens pitching a new sitcom.