Sunday

Pick of the day Wild Isles 7pm, BBC One

In this episode of what is said to be David Attenborough’s final series shot on location, he focuses on woodland. In the Scottish Highlands, all eyes are on the male capercaillie as he spends six hours every morning prancing and preening just to get some female attention – as well as that of an angry male competitor. Another star of the show is the ash-black slug, which has a penis that becomes as long as its body (up to 30cm) when mating.

The Great Celebrity British Bake Off for Stand Up to Cancer 7.45pm, Channel 4

“My expectations are so low, I think I’ll do well for myself,” deadpans David Schwimmer. This week, the Friends star joins ex-Little Mixer Jesy Nelson and comedians Rose Matafeo and Tom Davis in the tent for Stand Up to Cancer. Expect celebrity embarrassment in meringue form. Danielle De Wolfe

Grace 8pm, ITV1

John Simm returns as DS Roy

Grace for the third series of the detective drama adapted from

Peter James’s novels. After violence at a colleague’s leaving do, Grace and his colleague DS Glenn

Branson (Richie Campbell) have to investigate their coworkers. Grace has his suspicions but, in actuality, all bets are off in the first of three standalone mysteries. Micha Frazer-Carroll

The Gold

9pm, BBC One

Neil Forsyth’s masterful drama concludes, with the Brink’s-Mat robbers and fencers and smelters behind bars, or on their way. As ringleader Kenneth Noye (Jack Lowden) stands trial, the apparent end of the investigation just means stakes are raised. Forsyth wrings maximum tension out of whether justice can prevail. Jack Seale

We Need to Talk About Cosby

9pm, BBC Two

W Kamau Bell continues to explore how Bill Cosby used his fame to allegedly perpetuate sexual assaults against dozens of women. This week’s episode centres on

The Cosby Show, which arrived at a major moment for Black culture in America during the mid-80s and provided ample cover for its star’s behaviour. Crucially, there’s plenty of space for the victims to speak.