When Ruby Wax Met
9pm, BBC Two
“Trump scared the shit out of me,” recalls Ruby Wax. “And I think it’s my fault that he kept a career going.” It’s a striking opening gambit but the footage of their 1996 joust is undeniably squirm-inducing in places. This series in which Wax – now with the perspective supplied by a masters degree in cognitive therapy – looks back on her previous career as a celebrity interviewer is funny, sometimes revelatory viewing. Other, marginally less stressful featured encounters include OJ Simpson and Carrie Fisher. Phil Harrison
The Secret World of Biscuits
8pm, Channel 4
The world of biscuit retail is a surprisingly competitive, even brutal place. Dawn French narrates this brief history of the fierce territorial battles that have taken place for control of prized teatime snack territory. It’s an entertaining tale of copycats, cost-cutting and high court battles. PH
Baptiste
9pm, BBC One
Julien Baptiste (Tchéky Karyo) just has an affinity with the bereaved parents of Europe, doesn’t he? In this second season finale (fourth, if you count The Missing), he and Emma (Fiona Shaw) are as one in their desperate effort to prevent another attack. But can she hold her nerve against her only surviving child? Ellen E Jones
Professor T
9pm, ITV
Surgical gloves at the ready for this season finale of the eccentric detective series. Parent-child relationships have been a regular theme, with Professor T’s (Ben Miller) own mother always hovering in the background. So when an attempt is made on a businessman’s life, he pursues a familiar line of investigation. EEJ
The Handmaid’s Tale
9pm, Channel 4
A cathartic conclusion to season four of the dystopian drama. June risks everything to ensure that justice is served. But what will that justice look like? The journey towards it doesn’t always make for easy viewing, and there’s no sign of things easing up – the show is preparing to go out with a bang in season five. PH
Did Covid Leak from a Lab in China?
10.15pm, Channel 4
With bad-faith actors intent on establishing a link between the Chinese state and Covid-19, this doc will need to tread carefully. Boasting testimony from Biden insider Professor David Relman and the University of Oxford’s Sir John Bell, it wonders how much we know about the origins of the virus. PH
Film choice
The Straight Story 11am, Film4
Whimsical, slow and unfailingly gentle, this is exactly what you wouldn’t expect from David Lynch. Richard Farnsworth exudes charm and dignity as Iowa farmer Alvin Straight, who hops on to his motorised lawnmower to visit his dying brother. It’s a long road, rich with Lynch’s sly vision of American life. Paul Howlett
Live sport
Scottish Premier League Football: Dundee v Hibernian, 11am, Sky Sports Main Event The Scottish top-flight game from Kilmac Stadium.
Premier League Football: Southampton v Manchester United, 2pm, Sky Sports Main Event With Arsenal v Chelsea to follow.
Cycling: Vuelta a España, 3.30pm, Eurosport 1Stage nine of the Grand Tour race.
