Terrestrial
Grand Designs, Channel 4, 9pm
Katrin and James Gray found a redundant solarium atop a block of flats overlooking the beach in Bournemouth. Having bought the solarium, they negotiated with neighbours to build a penthouse on the roof. The old solarium comes with an architectural gem - a large copper dome which they want to convert into a classical library. But building on top of another structure brings problems. With quizzical aplomb, Kevin McCloud looks on.


Party Animals, BBC2, 9pm
As the Westminster soap concludes, Labour MP Jo Porter (Raquel Cassidy) must perform well in an opposition debate - otherwise her career is over. When her husband does a snog-and-spill story in a tabloid, it looks like her fate is sealed. As the local by-election in Sedley hots up, so does the relationship between Conservative candidate Ashika and Labour lobbyist Scott. However, when Scott anonymously receives photos of former lovers Ashika and MP James Northcote (Patrick Baladi), he is torn. He should release them to the press, but it would spell the end of their relationship.


New Street Law, BBC1, 9pm
Cheeky Charlie Darling reckons he's landed a lulu of a case when he represents a pricey courtesan who is set on suing her plastic surgeon for having let her down in certain prominent areas. Meanwhile, idealistic Jack faces problems when he defends two young women accused of murder.



Digital
The Thomas Crown Affair, Film4, 9pm
Steve McQueen is a cool millionaire who does stuff Duncan Bannatyne could never imagine: masterminds bank jobs for the thrill of it. Faye Dunaway is the insurance investigator on his case.


Racism - A History, BBC4, 9pm
Racism: the driving force behind some of the most atrocious crimes in human history. This three-part series starts by considering the implications of the early contact between Europeans and people of Africa and the Americas in the fifteenth century. Featuring interviews with distinguished scholars, the programme explores the development of racist ideas and practices in key institutions, and shows how the writings of some of Europe's greatest thinkers influenced debates surrounding slavery, freedom and imperialism.


Tight Spot: Stuck, BBC4, 10.30pm
Adrian, a 40-something, well-groomed ad executive, is driving. He's pompous, pernickety and tense, and believes buses are for failures. Simon, in his late twenties and very creative looking in his hip-casual clothes, is in the passenger seat - and doesn't want to be there. The pair have nothing in common except work. Simon's on the way up the career path, but Adrian is on the way down. The car is stationary - and the conversation is interesting

Radio
The Man Who Sold Peerages, Radio 4, 11am
The subject of this programme is not who you might think. This chap was called Maundy Gregory who set himself up as an honours broker in Whitehall after the First World War. Also the series Lent Talks continues on Radio 4 at 8.45pm. This week, Shami Chakrabarti, director of Liberty, reflects on the trial of Jesus and its lesson for Western democracies.