What to watch on TV tonight - Death in Paradise, The Naked Rambler

TV picks, Tuesday 21 January

Kris Marshall and Sara Martins in 'Death in Paradise' (BBC)

Death In Paradise

9pm, BBC1

A zombie movie being filmed on the island ends in real-life horror when a stand-in is poisoned – and new detective Humphrey (Kris Marshall) deduces the victim was not the killer’s intended target.

The Naked Rambler

10.35pm, BBC1

What to make of Stephen Gough? The ex-Royal Marine known as “the naked rambler” for his habit of dressing in nothing but his rucksack and boots, has been in prison for nearly seven years, mostly in solitary confinement. This documentary hitches up with Gough as he leaves jail in Edinburgh and begins a cross-country hike back home to Southampton. His ex-partner Alison is at a loss.

The Search For Alfred The Great

9pm, BBC2

King Alfred’s bones have been moved so many times over the centuries that many people concluded they werehad been lost forever. Now Neil Oliver follows historians and scientists investigating the final resting place of the Anglo-Saxon monarch, who died in 899 and was originally interred in Old Minster in Winchester.

Ross Kemp: Extreme World

9pm, Sky1

The bald hardman visits the red-light district of Mumbai in India to investigate sex trafficking.

Growing Up Down’s

9pm, 12.30am & 3am, BBC3

Documentary following a group of young actors with Down’s syndrome as its members set out on tour with a production of Shakespeare’s Hamlet.

Rococo: Travel, Pleasure, Madness

9pm & 3am, BBC4

Waldemar Januszczak follows his series on the Baroque with an artistic tendency even more so – indeed the term “rococo” (which was initially an insult) partly derives from the word baroque.