Code 404
10pm, Sky Comedy
DI Roy Carver (Stephen Graham) and his resurrected partner DI John Major (Daniel Mays) return for a second season of AI-assisted policing. After the first series ended with the revelation that Carver had got together with Major’s wife while he was dead, the pair went their separate ways. Yet, a 20-year-old cold case throws the partners reluctantly back into action again, and with a divorce pending for Major, the pressure starts to cause glitches for his system, prompting a possibly catastrophic failure. Ammar Kalia
Heathrow: Britain’s Busiest Airport
8pm, ITV
Covid protocols can’t liven up this workaday airport observational documentary. Tonight there are big queues at arrivals, but the big stories are an illegally parked car outside Terminal 2, and an elderly man who has wandered into a secure corridor by mistake. Fasten your seatbelts! Jack Seale
Changing Rooms
8pm, Channel 4
More makeovers for the revamped interior design show, sponsored by Dulux. Tonight, we’re in Leeds, where former teacher Pauline wants her purple floor-to-ceiling front room to be even more … purple. Meanwhile, her neighbour Amanda hopes to have her grey living room transformed. Ali Catterall
Coastal Devon & Cornwall with Michael Portillo
8pm, Channel 5
The second episode of Portillo’s south-west travelogue sees him exploring the north Cornish coast. He battles an incoming Atlantic storm as he visits the vicarage where novelist Thomas Hardy stayed in 1870, before moving on to meet the Cornish language singer Gwenno. AK
H2O: The Molecule That Made Us
9pm, BBC Four
The expansive three-part series on how water underpins human existence and life on earth continues. Tonight’s episode examines a new theory that places access to fresh water as the core foundation for historic civilisations, as well as the impetus behind bipedalism. AK
Gossip Girl
10.35pm, BBC One
Episode two of the rebooted teen show, a passable – if more diverse – gen Z hornfest. This week, Zoya (Whitney Peak) gets close to Obie (Eli Brown), Julien (Jordan Alexander) wonders how to keep them apart, and Gossip Girl – the town tattler who now resides on Instagram – sticks their oar in. Hannah J Davies
Film choice
Shirley Valentine (Lewis Gilbert, 1989), 2.15pm, Sky Cinema Greats
This bittersweet holiday romance has Pauline Collins as the housewife who, fed up with talking to the wall rather than her miserable husband, played by Bernard Hill, jets off to Greece with giggly Jane (Alison Steadman). Guilt, reconciliation and self-discovery are ladled on lavishly by scriptwriter Willy Russell. Paul Howlett
Live sport
Paralympics 2020 12noon, Channel 4. Athletics coverage.
International football: Finland v Wales 4.55pm, Sky Sports Main Event. Friendly match from Olympic Stadium, Helsinki.
International football: Denmark v Scotland 7pm, Sky Sports Main Event. World Cup qualifier from Parken Stadium.
