The Undiscovered Peter Sellers
10pm, Sky Arts
Just when you thought that every cobwebbed vault had been scoured for unseen footage of one of our greatest comedians, along comes Victor Lewis-Smith with an ingeniously assembled programme. Rare newsreel abounds but many of the best finds are cleverly animated audio recordings, with the show employing lip-readers to match silent home-movie footage of Goon Show rehearsals. Continues Wednesday with Kenneth Williams, then Thursday with Tony Hancock. Mike Bradley
Only Connect Champion of Champions Special
7.30pm, BBC Two
The brainy quiz kicks off some seasonal editions with the series nine champs, the Europhiles, taking on the season 11 winners, the String Section. Wednesday will be a sports special while Thursday sees families the Lasletts and the Meeples pitched into a tribal feud. Graeme Virtue
Gogglesprogs Christmas Special
8pm, Channel 4
Familiar faces return for a new edition of the overpoweringly cute kid-powered review show. Watching ET and the royal wedding, as well as the best of 2018’s telly, are Welsh siblings Molly and William (now joined by five-year-old sister Beth), and Essex best friends Stephanie and Christina. Jack Seale
Celebrity Portrait Artist of the Year
8pm, Sky Arts
Jim Moir may be better known as his alter ego Vic Reeves, but tonight he’s wielding his almost equally celebrated brush to paint the likes of Howard Jacobson and Kanya King. Fellow dabbers include Joe Lycett, Josie Long, Phill Jupitus, Maureen Lipman and weatherman Tomasz Schafernaker. Ali Catterall
The Long Song
9pm, BBC One
Set during the last days of slavery in Jamaica, Sarah Williams’s three-part adaptation of Andrea Levy’s novel is the heartrending story of a girl’s struggle to survive on a plantation owned by her petulant mistress. Tamara Lawrance, Hayley Atwell and Lenny Henry make this a must-see. Continues tomorrow. MB
Grizzly Bear Cubs and Me
9pm, BBC Two
Gordon Buchanan’s latest spellbinding venture sees him travel to Russia to film an attempt by pioneering biologists the Pazhetnovs to fast-track six orphaned bear cubs to independence. Off-the-chart cuteness combines with scientific study and wry observation. The two-parter concludes tomorrow. MB
Film choice
Predestination 11.15pm, Film4
Ethan Hawke’s time-travelling agent, hunting serial killer the Fizzle Bomber in 1970 New York, meets a mysterious character (Sarah Snook) with a tale to tell. It’s the precursor to an extraordinary adventure around the “predestination paradox”. Meddle with time at your peril in this ingenious fantasy. Paul Howlett
Today’s best live sport
World Darts Championship Day six of the PDC event won last year by Rob Cross. 12.30pm, Sky Sports Main Event
Carabao Cup football: Leicester City v Manchester City The holders visit the King Power stadium in a quarter-final clash. 7pm, Sky Sports Main Event
Test cricket: New Zealand v Sri Lanka Final day of the first Test. 9.55pm, Sky Sports Cricket
