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Dara O Briain and Hugh Dennis look back on world events from the recent past in the company of guests Angela Barnes, Ed Byrne, Sarah Keyworth, Glenn Moore and Ahir Shah. S20 Ep8

Dara O Briain and Hugh Dennis feature in a special edition of the topical comedy show featuring seasonal material, fond favourites and previously unseen bits.

The Unseen Bits: Host Rob Brydon and team captains David Mitchell and Lee Mack return with previously unseen material from the 11th run of the comedy panel show. S11 Ep9

Josh Widdicombe and James Acaster challenge more celebrities to square the theoretical circle - their guests this time are Ross Noble, Lou Sanders, Angela Barnes and Sunil Patel. S4 Ep7

Josh Widdicombe and James Acaster are joined by Victoria Coren-Mitchell, Rosie Jones, Isy Suttie and Toussaint Douglass to test more theoretically absurd scenarios. S4 Ep8

Shopping from Home.

Shopping from Home.

Dairy: The Bikers celebrate our dairy industry as they make dishes including a classic cheese and onion turnover and look at the history of school milk and British cheddar. S2 Ep18

Packages of cocaine are found concealed in the chassis of a bus, officers receive a tip-off about a vehicle loaded with cartel cash, and a magician comes under scrutiny. S5 Ep11

A shipment of cocaine is discovered in the fifth wheel of a tractor-trailer, and officers searching a courier van find a cache of firearms. S5 Ep12

Lifeboat Crew: Guy Martin joins the crew of an RNLI lifeboat in his hometown of Grimsby as he tackles a selfless and demanding job where volunteers put their lives on the line every day. S2 Ep1

Palermo: Rick Stein ends his series of long weekends in Palermo on the coast of Sicily, with unforgettable dishes flavoured with pine nuts, raisins, lemons and almonds. S1 Ep10

Officers in Laredo intercept a truck smuggling narcotics over the border, and a courier heading to Mexico is caught delivering guns and ammunition in Eagle Pass. S6 Ep12

Officers are on alert for a cartel ambush as they transfer a Sicario to the Mexican military. A random inspection of a pick-up truck reveals 32 kilogrammes of narcotics. S1 Ep1

Turkey: Another thrill-seeking adventure, this time with long-term mates Joe Wilkinson and Zoe Lyons - who've travelled to gigs together for years - taking on the wilds of eastern Turkey. S4 Ep2

Motoring with the motormouths who ponder how to make the humble police car more cost-effective. The Reasonably Priced Car welcomes Alan Carr - no relation - and Justin Lee Collins. S11 Ep1

High-octane hijinks. Jeremy falls in love with the Mercedes CLK Black, Richard takes on some annoyingly cool French skiers, and Spooks stars Rupert Penry-Jones and Peter Firth guest. S11 Ep2

Japan - Tokyo: Dave and Si visit Japan, home of their favourite food. They discover the ultimate sushi at Tokyo's famous fish market and visit a manga cafe. S1 Ep4

Palermo: Rick Stein ends his series of long weekends in Palermo on the coast of Sicily, with unforgettable dishes flavoured with pine nuts, raisins, lemons and almonds. S1 Ep10

At Christmas: Rob Brydon hosts a festive edition of the comedy panel show, with Henry Blofeld, Kerry Howard, the Rev Richard Coles and Clive Myrie joining captains David Mitchell and Lee Mack. S11 Ep1

Former winners Yasmine Akram, Stephen Mangan, Ingrid Oliver and Tom Rosenthal return to the best-selling author's tests of ingenuity and try to become a Champion of Champions. S6 Ep53

The Pointless co-host invites Ade Adepitan, Jean Johansson, Stephen Mangan and Vikki Stone to test their general knowledge skills on his not-so-pointless game show. S4 Ep3

Gravity: Points are awarded for simply being interesting in this hit panel quiz. Barry Humphries, Bill Bailey, Rich Hall, Alan Davies and host Stephen Fry float some ideas on gravity. S7 Ep12

Team captains Paul Merton and Ian Hislop are joined by guest host Alexander Armstrong and panellists Dr Hannah Fry and Phil Wang. S60 Ep9

Stuck in a Mammal Groove: Joe Thomas struggles with the definition of a mammal, Iain Stirling devises an explosive chemistry experiment and Sian Gibson sends an NSFW text to Greg. S8 Ep3