This week, for Christmas, a heart-warming festive treat full of joy, goodwill and Peter Sellers at his cuddliest.

ONLY JOKING.

Actually, it’s Carol for Another Christmas, Rod Serling’s bleak, angry, Cold War reworking of A Christmas Carol . Conceived as the opening salvo in a run of UN-friendly TV specials, the film is a full-throated warning against isolationism, nuclear brinkmanship and the idea that minding your own business ever ends well. Xerox paid for it, ABC aired it ad-free on 28 December 1964, viewers and critics were divided about it, and it then disappeared for nearly 50 years.

Directed by Joseph L. Mankiewicz (Cleopatra) in his only television outing, the film stars Sterling Hayden as Daniel Grudge, a wealthy American industrialist who hates foreign aid, diplomacy and the United Nations in equal measure. On Christmas Eve he clashes with his liberal nephew Fred (Ben Gazzara) and is hauled through a series of visions featuring war dead, nuclear devastation and, most memorably, Peter Sellers as “Imperial Me” – a cowboy-Santa demagogue preaching radical individualism. It was Sellers’ first screen appearance after his near-fatal heart attack earlier that year.

Also featuring Eva Marie Saint, Robert Shaw, Steve Lawrence, Pat Hingle, Britt Ekland and music by Henry Mancini, the film is verbose, didactic and relentlessly grim – and all the more fascinating for it.

Joining Tyler is Tilt Araiza (The Sitcom Club / Jaffa Cakes for Proust), drawing parallels with Planet of the Apes, The Prisoner and unpacking Serling and the social and political climate just one year after after the assassination of JFK... looking at how things came together to produce this Christmas curio.