Troy: Fall of a City
9.10pm, BBC One
With the realisation that war with the Greeks could take a wee while, Helen and Alexander’s glow of honeymoon-period bliss changes to harrowed guilt at the devastating consequences of the choice they have made. With Troy now officially under siege, Hector hatches a perilous plan, but he’ll need to put his trust in Alexander to make it work. Meanwhile, Helen goes on a PR offensive as the city slowly begins to starve, but there are some in her newly adopted family who will take a bit more convincing. Ben Arnold
Ant & Dec’s Saturday Night Takeaway
7pm, ITV
This latest series features a new segment: The Elephant in the Room, during which the pair must bounce back from tabloid revelations. It isn’t a problem: the double act move from strength to strength. OBE-related larks continue, while guests tonight include Michael Ball. John Robinson
All Together Now
7.15pm, BBC One
The heat winners prepare for appraisal by Rob Beckett’s wall of judgment. For each act, a catchy chorus might just hook the grand prize of £50,000, but with this series hardly causing The Voice to wobble, the panel should probably readjust to experiencing Saturday night TV from their sofas. Mark Gibbings-Jones
Britain at Low Tide
8pm, Channel 4
Tori Herridge uncovers more secrets of our shorelines, before the waves wash priceless clues away. This week she is in Glasgow exploring the River Clyde, which teemed with industry 250 years ago, at the height of the tobacco trade. But Herridge travels back further, finding evidence of a busy iron-age waterway. Ali Catterall
Modus
9pm, BBC Four
It takes much gravitas to compensate for a plot involving the disappearance of an American president played by Kim Cattrall – and the final two episodes of this Swedish drama deliver in spades. Warren’s dirty secret is up, but president Tyler is clinging to a sad one about her daughter, about to be plunged into deadly danger. David Stubbs
Mosaic
10pm, Sky Atlantic
At moments, Steven Soderbergh’s murder mystery seems constrained on the small screen, reflecting perhaps its initial iteration as an interactive app, but at least that’s a fault borne of ambition. Tonight, Eric’s sister, Petra, has questions about the case surrounding children’s author Olivia Lake. Jonathan Wright
Film choice
Baby Driver, 11.30am, 8pm, Sky Cinema Premiere
Ansel Elgort is Baby, a getaway driver of consummate skill. Plugged into a glorious pop soundtrack on his antique iPod, Baby provides breathtaking escape transport for a heist gang managed by Kevin Spacey’s Doc – until it all goes badly wrong. It’s an outrageously exhilarating ride. Paul Howlett
Live sport
Premier League Football: Liverpool v Newcastle United Action from Anfield. 5pm, BT Sport 1
Athletics: World Indoor Championships From the Birmingham Arena. 5.30pm, BBC Two
Boxing: Kell Brook v Sergey Rabchenko Brook debuts in the super-welterweight division. 7.30pm, Sky Sports Main Event
