PICK OF THE DAY

THE ACCIDENT

9PM, CH4 ★★★★

Jack Thorne’s dark new drama explores every parent’s worst nightmare: the death of a child. This four-part series, set in Wales, begins with an explosion that causes a building to collapse – with eight children inside. The incredible Sarah Lancashire plays Polly Bevan (right), who can only watch in horror with her best friends, Angela (Joanna Scanlan) and Greta (Eiry Thomas), as bodies are brought out. Whose child will survive, and who is to blame for this tragic accident? This series is as gut-wrenching as you’d expect, and we’re in for a rough ride in search of justice.

DIY SOS: THE BIG BUILD

8PM, BBC1 ★★★★

Chris and Tara from Plymouth – whose two eldest sons have cerebral palsy – bought an old forge to renovate, but medical issues have separated them all. The build has stalled and they need help, so Nick Knowles and his volunteers will take on snowstorms and designer Gabrielle’s ambitious plans to restore hope and their home.

PRINCE CHARLES: INSIDE THE DUCHY OF CORNWALL

9PM, ITV ★★★★

You may have tasted his Duchy jam and dunked his biscuits, but it’s time to see what really goes on across the royal’s ancient estate. In this first of two very charming parts, discover how the longestserving Duke of Cornwall is helping people, from London all the way to the Isles of Scilly.

BILL TURNBULL: STAYING ALIVE

10PM, CH4 ★★★★ This intimate film follows a year in the life of the former newsman after he was told he had terminal cancer. Here, in moving detail, we see Bill undertaking a gruelling course of chemotherapy, celebrating the love and support he receives from family, friends and fans, and trying to beat his devastating diagnosis. TJ