TV tonight: new comedy The Chair Company is quirky viewing

The Chair Company

9.45pm, Sky Comedy

Tim Robinson uses his hilariously odd brand of comedy to give a voice to anyone who refuses to let go of the real injustices of the world. In this case, it’s an office chair that breaks under newly promoted William Ronald Trosper (Robinson), when he gives a speech to his colleagues. He goes to great lengths to track down the chair company’s customer services to complain – but instead finds himself investigating a far-reaching conspiracy. Hollie Richardson

Why Planes Crash

8pm, BBC One

From South Korea and India to Washington DC, it has been a deadly year for aviation, with an unusually high number of fatalities. Featuring shocking footage, eyewitnesses and forensic analysis experts explore the possible culprits, from a shortage of air traffic controllers and outdated tech to airports near bird habitats. Ali Catterall

Dispatches: 999 Undercover – NHS in Crisis

8pm, Channel 4

Whatever you do, don’t have an accident. As another desperate winter approaches, Dispatches has embedded an undercover reporter inside a 999 control room, with revelations that are predictable but no less horrifying for it. Should you wait for the ambulance, perhaps for ever? Or risk making your own way to hospital? Ellen E Jones

Blue Lights

9pm, BBC One

The crime-busting Blue Lights team. Photograph: BBC/PA

We’re only three episodes in and this hit Belfast cop show has already had an unbearable amount of heart-in-mouth moments – but hold on for yet more. The sight of a white van is enough to make paranoid Annie pull her gun out, while Grace is so determined to help teenager Lindsay that it could land everybody in deep trouble. HR

Task

9pm, Sky Atlantic

The intense US crime drama reaches its penultimate episode. After their kidnap meet-cute last week, paunchy FBI man Tom (Mark Ruffalo) and bushy-bearded stick-up artist Robbie (Tom Pelphrey) are at large in gorgeous Pennsylvania woodland. But with various factions converging on them with guns up, things seem likely to go south. Graeme Virtue

Pete Wicks: For Dogs’ Sake

9pm, U&W

It’s an unexpected joy to watch gooey-hearted reality TV star Pete Wicks help out at Dogs Trust centres. In this start to the second series, a mum and her litter that have been left abandoned in a suitcase are rushed in. Can their trust in humans be rebuilt? HR