Who Wants to Be a Millionaire?
9.15pm, ITV
ITV is hardly shy of gambling on leftfield gameshow hosts, as it proved by picking Giles Coren for glitzy primetime quiz 500 Questions two years ago. With Jeremy Clarkson set to reboot the redoubtable Millionaire, however, it’s tempting to suspect the opinionated petrolhead is sitting in the wrong vehicle. ITV’s scheduling suggests confidence,placing an episode every night this week, as with Chris Tarrant’s original Millionaire in 1998. But will the public go for such a divisive figure? That’s the million-pound question. Mark Gibbings-Jones
Harry Hill’s Alien Fun Capsule
7.30pm, ITV
The “bonkers” panel show, as Edmonds/Partridge might put it, continues with two teams attempting to persuade an army of invading aliens we’re actually worth saving. An uphill struggle, some would say, given almost any recent news headline. Still, the likes of Janet Street-Porter and Una Stubbs give it their best shot. Ali Catterall
Britain’s Got Talent
8pm, ITV
It’s the fourth audition round and the contestants are the standard mix of eccentric and quite good, which is part of the charm at this stage of BGT. In previous weeks, dancing aliens made it through, but twerkers dressed as a zebra and a monkey somehow didn’t. Will there be any justice tonight? Hannah Verdier
Britain’s Most Historic Towns
8pm, Channel 4
The penultimate episode of the series seeking to provide an impression of what life was like during our turbulent past. Alice Roberts explores the Regency period by studying Cheltenham, Britain’s most Regency town. She also attends a period society ball, and explores that era’s fondness for enemas. Candice Carty-Williams
Salamander
9pm, BBC Four
Once again, a conspiracy is impinging directly on the family life of stolid cop Paul Gerardi as handsome Jamie’s machinations bring the blood-diamond affair even closer to home. Elsewhere, as the entertaining Belgian thriller continues, Jacky leaves custody in the company of René. Jonathan Wright
Secrets of Tutankhamun’s Treasures
9.15pm, Channel 5
It is nearly a century since the Egyptian tomb was reopened and it’s tough to imagine what secrets this much-scrutinised archaeological hoard could have left to yield. This episode focuses on Tutankhamun’s death mask, and the theory that it wasn’t actually his. Andrew Mueller
TV films
Letters from Iwo Jima, 9pm, TCM
Clint Eastwood’s companion piece to his Flags of Our Fathers examines the epic second world war battle for Iwo Jima from the Japanese standpoint, focusing on the defenders’ commander, General Kuribayashi (an eloquent Ken Watanabe), and a lowly trooper (Kazunari Ninomiya). Paul Howlett
Live sport
Snooker: World Championship The second semi continues. 10am, BBC Two
FA Cup Football: Arsenal Women v Chelsea Ladies The final from Wembley Stadium. 5.10pm, BBC One
Golf: The Wells Fargo Championship The third day’s play at the Quail Hollow Club in Charlotte, North Carolina. 8pm, Sky Sports Main Event