Lego Masters
8pm, Channel 4
The Great British Brick Off is upon us in this new series hosted by Melvin Odoom, which aims to find the nation’s foremost Lego engineers. Eight pairs of contestants will compete for the crown, completing tasks ranging from the technical to the imaginative. It’s compelling stuff, rendered universal by the fact that we all have experience of handling this most versatile of playthings. The results range from the ridiculous to the truly startling. Phil Harrison
The Pacemakers
8pm, BBC2
If you think athletes take it easy once they’ve reached 90, this documentary blows away that myth. It’s inspiring to see that the oldest sprinters around are as competitive, tenacious and ambitious as ever. Charles Eugster, who died this year aged 97, took up bodybuilding in his late 80s, and the film follows him training to break the world long jump record. Also featured is veteran athlete Dalbir Singh, who is hoping to win the 100m sprint at the age of 91. Hannah Verdier
Ambulance
9pm, BBC1
The real-life medical drama returns. This time we’re in the West Midlands, with those whose job it is to dispatch paramedics on to the street to those who need their help. As anyone who has had first-hand experience with the emergency services will know, your respect goes out to those managing when stretched to capacity – and rather less to those who’ve fallen over after a long session in the pub and called 999. John Robinson
Top of the Lake: China Girl
9pm, BBC2
Jane Campion’s mystery continues. A bloodied but unbowed Robin awakes to find Mary has left with arch arsehole Puss. Meanwhile, her suspicions regarding Cinnamon’s killer soon set tensions simmering within the department. When the reason for Miranda’s volatility comes out, it seems that Cinnamon’s disappearance may be linked to a surrogacy ring. At least Robin can find some solace in her steadily warming relationship with Pyke, despite frostiness from Julia. Mark Gibbings-Jones
Wasting Away: The Truth About Anorexia
10pm, Channel 4
Veteran foreign correspondent Mark Austin reports on a story closer to home, namely his daughter Maddy’s anorexia. Both are endearingly honest about their awkwardness with discussing such a personal matter so publicly but, more to the point, are equally candid about what it is like to have the illness, and the difficulties of caring for someone with it. The pair meet other sufferers and advocates, and take the health secretary, Jeremy Hunt, to task. Andrew Mueller
Eat Your Heart Out with Nick Helm
8pm, Dave
This foodie odyssey from the star of Uncle seems like an opportunistic brand extension, with Helm guzzling freebies at some of his favourite chow dens and booze holes – but, as the title suggests, there’s more going on under the surface. The spaced-out comic dishes up some melodrama between bites that makes it feel like a more lo-fi take on The Trip, with an opening double bill that is London-centric but very fun. Graeme Virtue
Insecure
10.35pm, Sky Atlantic
Issa Rae’s HBO comedy about young black women struggling with work,friendships, dating and self-direction in LA is yet to resort to stereotype as it hits the halfway mark of its self-assured second series. Rae’s character Issa Dee has her confidence, which was finally back on track after her messy breakup with Lawrence, dented at a party. Elsewhere, Lawrence ends up having a rather wild night out after a routine shopping trip takes an unexpected turn. Sharon O’Connell
Film choice
Alien Resurrection (Jean-Pierre Jeunet, 1997) 9pm, Film4
This fourth instalment in the Alien series is set 200 years on from Alien 3, with Sigourney Weaver’s cloned Ripley back from the dead to face more creatures. Jeunet, director of the sublime comedy Delicatessen, adds some ghoulish touches to the usual run-before-they-get-you action and the humans – including Michael Wincott, Ron Perlman, Winona Ryder and the enigmatic uber-Ripley herself – are as freaky as the monsters.
Live sport
Racing: York Ebor Festival 1.30pm, ITV. Coverage of the second day of the festival, including the 3.35 Yorkshire Oaks.
WTA Tennis: New Haven 6pm, BT Sport 1. Quarter-finals of the Connecticut Open, the final stop on the WTA tour ahead of the US Open.
T20 Blast Cricket 6.30pm, Sky Sports Cricket. Third quarter-final of the domestic competition.
