The Great British Bake Off
8pm, BBC1
There were nine in the tent and the little one said, “But the oven didn’t get hot enough. It wasn’t my fault. I’ll gouge you with this croquembouche …” It’s dessert week and the signature challenge is puddingy scourge, the creme brulee. The technical challenge, a spanische windtorte, is literally something Mary Berry made up to induce panic and the groping for English-to-foreign dictionaries. She’s not as nice as she looks. The end game is cheesecake Jenga: not just baking but balancing baking. Fiends. Julia Raeside
Horizon: OCD – A Monster In My Mind
8pm, BBC2
OCD, as this film points out, has become linguistically debased: a synonym for someone who has a tidy house. In fact, the truth of the condition – a psychological fear only made manageable by routine – makes that development seem rather shameful. It’s painful to watch, exhausting to live. We watch one sufferer, Richard, try to make a sandwich – an extremely upsetting experience. “It follows me,” he says of the condition. “If I was stronger I would have killed myself.” John Robinson
A Brief History Of Graffiti
9pm, BBC4
Looming lankily like the bassist from an ascetic Manc art-pop band, Dr Richard Clay presents an overview of illicit daubs and scratches. Exhibit A is the wall of the Reichstag, scrawled on in charcoal by Russian soldiers; from there Clay loops back to cave paintings and Roman gladiator fan-art, through the lithographs of the Communards and on to the streets of New York. He keeps striving for killer phrasing without always finding it; when he does, during a whirling summary in a Paris alley, he’s compelling. Jack Seale
Hey, Boo: Harper Lee And To Kill A Mockingbird
9pm, Sky Arts
Nelle Harper Lee said she wanted nothing more than to be “the Jane Austen of south Alabama”. Certainly, with a single novel, To Kill A Mockingbird, she set the seal on her enormous literary reputation, despite the recent, bizarre coda in which she published the followup, and revealed its hero to be a racist. This documentary fills in some gaps, including interviews with Lee’s sister Alice, while the likes of Rosanne Cash and Oprah Winfrey reflect on Mockingbird’s huge popularity. David Stubbs
The Strain
9pm, Watch
Guillermo del Toro’s dark fantasy drama returns with a feature-length season premiere. With a looming war between Eph and The Master seemingly on the cards following season one, you’d expect the new episode to dive straight in. So naturally, the action opens with … a trip to 1930s Romania and an origin story that goes some way to explaining the main beef between the protagonists. An action-packed beginning, but if you missed the previous season this might all prove to be a bit of a, well, strain. Mark Gibbings-Jones
Britain’s Spending Secrets
9pm, BBC1
Concluding instalment of Anne Robinson’s exploration of our relationship with money, and how it changes according to the amount of the stuff we have. Robinson seeks to answer the big question of whether money can buy happiness, by asking someone likelier to know than most – entrepreneur John Caudwell, one of Britain’s richest people, who suggests that if the answer is yes, it’s only up to a point. As demonstrated by meeting a few people somewhat less comfortably off, it’s a view he can afford to take. Andrew Mueller
Witnesses
10pm, Channel 4
Series finale time on the windswept French coast. With Kaz Gorbier caught, Paul and Sandra now need to figure out who has been digging up dead bodies and arranging them artfully in show homes. They also need to figure out why this is being done – an explanation rooted in a secret involving a local bigwig. Leaving aside last week’s uneven episode, a dark and often downright disturbing police procedural of real visual flair, which has given TV a new star in Marie Dompnier. Jonathan Wright
Film choice
The Man Who Would Be King (John Huston, 1975) 10pm, BBC4
Huston originally planned to film this Rudyard Kipling story in the 40s, with Clark Gable and Humphrey Bogart; they could hardly have bettered this pairing of Sean Connery and Michael Caine. The two play a pair of rogues seeking their fortune in remote Afghanistan in a classic adventure that makes sharp thrusts at the corrosive effects of power. Paul Howlett
The Joneses (Derrick Borte, 2009) 1.35am, Channel 4
Keeping up with new neighbours the Joneses is hard-going for the wealthy denizens of their exclusive suburb: Steve and Kate Jones (David Duchovny, Demi Moore) are a highly successful couple and their kids (Amber Heard, Ben Hollingsworth) are the quintessence of high-school cool. Fortunately, they harbour a dark and droll secret in this enjoyable satire on US materialism. PH
Today’s best live sport
World Athletics Championships Look out for Usain Bolt in the 200m today. 11am, BBC2
One-Day International Cricket: South Africa v New Zealand The third in a three-match series, which takes place at Kingsmead in Durban. 11.25am, Sky Sports 3
Cricket: Women’s Ashes The first of three T20 games with England on the brink of defeat. 6.30pm, Sky Sports Ashes
Capital One Cup Football More action from the second round of the cup that Chelsea won last year. 7.30pm, Sky Sports 1
