Sean Lock and Harry Hill take on Jon Richardson and Rose Matafeo. Alex Horne and the Horne Section join Susie Dent in Dictionary Corner. Jimmy Carr hosts. Rachel Riley takes care of the numbers. 2/11
Sandi Toksvig delves into a bit of quintessential QI with Alan Davies, Cariad Lloyd, Holly Walsh and Josh Widdicombe. 2/8
Sandi Toksvig quarrels with Jason Manford, Aisling Bea, Anuvab Pal and Alan Davies. 3/8
Sorting the fact from the fiction this week are guest panellists Lucy Beaumont, Eddie Kadi, Josh Pugh and Rebecca Lucy Taylor - aka Self Esteem. 6/13
Our celebrity panel try to guess the identities of celebrities singing inside extravagant costumes which hide their identities. 6/8
Sandi Toksvig gets stuck into a quagmire with Alan Davies, Sindhu Vee, Aisling Bea and Sally Philips. 11/8
Sandi Toksvig looks at quills with Alan Davies, Tom Allen, Jimmy Carr and Lou Sanders. 12/8
Sandi Toksvig looks at some queens with Alan Davies, Colin Lane, Sarah Millican and David Mitchell. 13/8
Nearly seventy years since David Attenborough first visited Raine Island the Planet Earth III team return to film the nesting green turtles. 1/7
The four finalists are put under further pressure as James Martin and Mary Berry set a knowledge test, before they work in a team to bake for UK dance group Diversity. 14/15
The team are at Woodhorn Museum in Northumberland, a former colliery, where treasures include a gold Rolex from the 1980s and FA Cup medals won by a Newcastle United legend. 14/20
The sewers put their twist on dinosaur dressing gowns, zhuzh up denim jackets and create pint-sized party outfits for Kids' Week. 6/10
In a Bake Off first, it's Botanical Week and the bakers tackle bakes inspired by nature, starting with a spice-filled Signature, followed by a herby Technical and topped off with a floral dessert Showstopper. 6/10
Frank and Lu delve into the ultra-competitive world of private tutoring, while a reunion with an old RADA mate presents Sebastian with a choice about his future. 10/10
Sandi Toksvig looks at Quantity and Quality with James Acaster, Bridget Christie, Joe Lycett and Alan Davies. 14/8
Sandi Toksvig looks at quads and quins with Alan Davies, Aisling Bea, Nish Kumar and David Mitchell. 15/8
For a very special Christmas episode, Sandi Toksvig is tonight joined by Sara Pascoe, Johnny Vegas, Josh Widdicombe and, of course, Alan Davies. 16/8
The team returns to Portchester Castle in Hampshire, where treasures include a Victoria Cross medal, a letter that travelled on the Titanic and a lost poem by Siegfried Sassoon. 15/20
It's Week 7, and we're going back to the 90s with cargo pants, 90s icon fancy dress and body-skimming supermodel dresses. 7/10
Dessert Week: The bakers take on Creme Caramels and a Meringue Bombe. Who will peak and who will wobble? 7/10
The four finalists are put under further pressure as James Martin and Mary Berry set a knowledge test, before they work in a team to bake for UK dance group Diversity. 14/15
The four finalists face the ultimate challenge in a last bid to impress judges Mary Berry and James Martin, but only one of them can become Junior Bake Off Champion. 15/15
Frank and Lu are drawn into Stratford's Silicon Valley when Spider calls upon their help to expose a mole within tech company Forosa. 1/10
As a hurricane approaches, the islanders are battening down the hatches, but while everyone is taking cover, the team are called to a murder scene. 7/8
Sandi Toksvig delves into a bit of quintessential QI with Alan Davies, Cariad Lloyd, Holly Walsh and Josh Widdicombe. 2/8
Sandi Toksvig quarrels with Jason Manford, Aisling Bea, Anuvab Pal and Alan Davies. 3/8
When a scientist is murdered in a bird sanctuary on Fair Isle and Perez returns to his childhood home to investigate, a storm forces Perez and the suspects to remain enclosed under the same roof. 5/6
Time is running out for Perez as prime suspect Peter Latimer lies critically ill in hospital. Was the fire a drunken accident, or was Latimer the second victim of a murderer still free on Fair Isle? 6/6
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