The Transit Of Venus: A Horizon Special (BBC2, 9pm) Science documentary about the planet Venus and its passing in front of the Sun on 5 June. Presented by Liz Bonnin.
Martin Clunes: The Lemurs Of Madagascar (ITV1, 9pm) Wildlife special where the actor visits Madagascar to spent time with the indigenous lemurs.
PICK OF THE DAY Big Brother 2012 (Channel 5, 9pm) Return of the reality show. Presented by Brian Dowling.
All In The Best Possible Taste with Grayson Perry (Channel 4, 10pm) Artist Grayson Perry investigates the taste of Britons, as preparation for a new piece of artwork. (1/3)
Big Brother's Bit On The Side (Channel 5, 10.45pm) Sister series to Big Brother taking an irreverent look at the latest events from the House. Presented by Emma Willis.
PICK OF THE DAY Bedlam (Sky Living, 10pm) Series 2 of the supernatural drama about a haunted apartment block that used to be a mental asylum. Starring Lacey Turner. (1/6)
The House The '50s Built (Channel 4, 9pm) Science series looking at the many household inventions and innovations that helped Britain escape the post-war doldrums. (1/4)
PICK OF THE DAY Marco Pierre White's Kitchen Wars (Channel 5, 9pm) Brand new reality cooking series where the world-famous chef goes on the hunt for the UK's best restaurateurs. (1/7)
Nina Conti – A Ventriloquist's Story: Her Master's Voice (BBC4, 9pm) Documentary following award-winning ventriloquist Nina Conti, as she reached a crossroads in her life and career following the death of her mentor/lover.
PICK OF THE DAY Louis Theroux: Twilight Of The Porn Stars (BBC2, 10pm) Follow-up to the 1997 documentary where Louis Theroux visited the porn stars of San Fernando Valley, where he sees how their fortunes have fared in the years since.
The Royal History Of Pop (Channel 4, 10pm) Clips and footage of moments when the pop world merged with the royal family.