TV tonight: moving film about the Dunblane massacre 30 years on

The Dunblane Tapes

9pm, Channel 4
March marks the 30th anniversary of the murders of 16 children and one teacher at Dunblane primary school. This moving documentary explores the day and its aftermath, when parents campaigned for the banning of handguns for private use in the UK. It’s a positive coda, but the horror is inescapable and many clearly remain traumatised. “Those children were given to my care,” says deputy headteacher Fiona Eadington, “and I didn’t protect them.” Phil Harrison

Dragons’ Den

8pm, BBC One
Beauty mogul Jenna Meek returns as a Dragon for an episode that begins with a coffin being carried into the Den: an entrepreneur wants to lay traditional dating apps to rest. There follow pitches for a cross between an awning and a tent, and a solution to the wastage caused when headphones break. Jack Seale

This Farming Life

8pm, BBC Two
As BBC Scotland’s gentle rural documentary series returns, we meet Lucy and Adam, who need a £4m mortgage to move their English operation north of the border. At the other end of the spectrum are Emma and Rob, balancing extra jobs and money-making schemes to keep their Highlands farm afloat. Hannah J Davies

Murder Case: The Hunt for Arlene Fraser’s Killer

9pm, BBC Two
This two-part documentary explores one of Scotland’s strangest missing persons investigations, hearing from Arlene Fraser’s sister and officers on the case. Arlene disappeared in 1998. Since then, police have probed her marriage, followed doomed leads, deployed unusual tactics and, essentially, discovered nothing. Phil Harrison

Hunting Outback Gold

9pm, U&Yesterday

Legendary … the outback gold hunters. Photograph: PR

On day four of the reality adventure series, Brendan encounters a spider so huge and hairy it would send most people screaming back to civilisation. But not these guys. Brendan and friend Jeff are pressing on with their quest to find Harold Lasseter’s legendary lost gold. Ellen E Jones

Murder on a Knife’s Edge: True Crime Presents

9pm, ITV1
After breaking up with his girlfriend of 18 years, father of three Wayne Coventry met Cordelia Farrell. A toxic relationship ensued and in 2019 Farrell killed her partner. It’s the first case in the second series of the true-crime show, with Farrell’s brother and father contributing and experts examining the details. HR