Celebrity MasterChef

BBC One, 8pm

Having got this far, Andy Peters, Liz McClarnon and Mark Moraghan face their toughest challenges yet. First, they have to cook breakfast for army cadets fresh from a long field-training exercise. After that, they head off to various London restaurants to finesse their cooking styles before showing John Torode and Gregg Wallace what they've learnt. Tomorrow, they're off to Mozambique, and finally, on Friday, it's the big cook off, whereupon the winner punches the air, bursts into tears and hurls a frying pan into the crowd.

Francesco's Mediterranean Voyage

BBC Two, 8.30pm

Francesco continues his voyage through the Gulf of Corinth on a sailing ship that is surrounded by dolphins. The mast skims underneath the Rio Antirio bridge with inches to spare, along the Corinth Canal and on to Athens. No visit to this much-maligned city would be complete without a visit to the Acropolis, which he describes simply as “the greatest symbol of civilisation in the world”. But that didn't stop the Venetians firing more than 700 cannon balls at it and igniting the Turkish arsenal. Then, of course, Lord Elgin set about his conservation work with hammer and chisel. “Sadly,” Francesco says, “I think neither we Venetians nor you British can rest easy in our minds when we visit here.”

Burn Up

BBC Two, 9pm

A new two-part topical thriller (concluding Friday) with a message, which - thanks to a fast-paced, intelligent script and some fine acting - is highly watchable. Rupert Penry-Jones plays the dynamic CEO of an oil company who is forced to reconsider his position on global warming. The bad guy is his closest friend - a ruthless oil lobbyist, played by Bradley Whitford of The West Wing fame, who goes in for blackmail and murder - while Marc Warren plays a benign government mercenary” who seems willing to save the planet as long as it serves his own sardonic self-interest. The characters tend to come with labels, and the elements of thriller are there for excitement rather than credibility. But it is still an exciting ride in an eco-friendly racer.

Extraordinary People: The Rainman Twins

Five, 9pm

Flo and Kay are the world's only female autistic savant twins. Give them any date, and they will instantly tell you what day of the week it was, what the weather was like and what their favourite TV stars were wearing. They can recall everything that has ever happened to them, ranging from the supremely trivial to the day that their mother tried to kill them. After their parents died they went to live in Florida with their sister and enjoyed the happiest years of their lives. But their idyll ended when their sister died and nobody wanted to take on two exceptionally demanding people. It is a sad story, beautifully told.

Editor's choice

• Burning Bush with W
• Revolution at the new Saatchi Gallery
• Boy George on sex, drugs and Amy Winehouse