Quagmire. Sandi Toksvig gets stuck into a quagmire with Alan Davies, Sindhu Vee, Aisling Bea and Sally Philips. 11/8. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Series 4, Episode 8. This week there's live music from Snow Patrol and stand up from Kerry Godliman - and the series wouldn't be complete without the hilarious Send to All. This week presenter Alan Carr bravely hands his phone over to Michael as he sends a text to his contacts. 8/9. Comedian Michael McIntyre presents the family entertainment series that guarantees big laughs, big stars and big surprises.

Iceland. Richard Ayoade takes actor Jessica Hynes on a whirlwind tour of stunning Iceland, trying to take in all its Scandinavian wonders in a mere 48 hours. 3/4. Join celebrity guests as they explore a unique weekend destination with the aim of having a holiday with all the boring bits taken out.

Castle Howard 2. At Castle Howard in North Yorkshire, the range of objects brought for the experts to peruse is eclectic, from a terracotta figurine to a jade Buddha. 8/26. Experts invite the public to bring along their antiques for examination. Some find their 'bric-a-brac' to be worth much more than they ever suspected.

Underground and Underwater. Sandi is joined by Zoe Lyons, Dan Tiernan, Josh Widdicombe and Alan Davies for an underground and underwater episode of QI. 14/14. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Qanimals. Sandi Toksvig looks at animals which start with q, with Alan Davies, Daliso Chaponda, Phill Jupitus and Cariad Lloyd. 8/8. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Quiet. Sandi Toksvig is today joined by Jimmy Carr, Andrew Maxwell, Sara Pascoe and Alan Davies. 9/8. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Quaffing. Sandi Toksvig indulges in a bit of quaffing and scoffing, with Alan Davies, Jo Brand, Phill Jupitus and Prue Leith. 10/8. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Quagmire. Sandi Toksvig gets stuck into a quagmire with Alan Davies, Sindhu Vee, Aisling Bea and Sally Philips. 11/8. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Quills. Sandi Toksvig looks at quills with Alan Davies, Tom Allen, Jimmy Carr and Lou Sanders. 12/8. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Series 26, Episode 5. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 5/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.

Series 26, Episode 6. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 6/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.

Series 26, Episode 7. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 7/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.

Series 7, Episode 4. It's international week, and the sewers make Breton tops, transform sarongs into a new garment and take inspiration from Frida Kahlo. 4/10. Amateur sewers take on challenges as they compete to be Britain's best home sewer. Their creations are judged by Savile Row's Patrick Grant and sewing expert May Martin.

Series 7, Episode 5. For children's week, the sewers' skills are tested by romper suits, Under the Sea-themed fancy dress and raincoats for mini models. 5/10. Amateur sewers take on challenges as they compete to be Britain's best home sewer. Their creations are judged by Savile Row's Patrick Grant and sewing expert May Martin.

Kingston Lacy. George is in Dorset at the UK's most exquisite example of Italianate architecture - Kingston Lacy. He also uncovers a tale of shame and scandal at the Cotswold landmark, Hidcote Manor Garden. 1/6. George Clarke explores some of the UK's most impressive historic homes.

Series 26, Episode 5. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 5/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.

Series 26, Episode 6. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 6/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.

Series 26, Episode 7. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 7/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.

Cake Week. The bakers tackle Battenberg, a turning-out technical challenge and a heroic showstopper. 1/10. Twelve enthusiastic contestants face three challenges a week as they take part in a competition to determine which of them is Britain's best amateur baker.

Ireland. Ben ventures to the 'Emerald Isle' to visit Georg and Bettina, an elderly European couple from Austria and Germany, who made the Irish wilderness their home nearly 40 years ago. 9/12. Adventurer Ben Fogle meets people who have turned their backs on Western society and set up home in some of the most isolated locations on Earth.

Change. In the aftermath of the storm, the vast landscape is flooded. Everyone is on the move, but the flood waters bring danger and our characters experience the terrifying ordeal of being washed away. 2/6. With unique access to a pristine, unspoiled corner of the Serengeti, the drama of the daily lives of Savannah animals and the emotional moments they face can be witnessed.

Spain. Looping around Andalucía, the luxury Al Andalus train takes in some of the most staggeringly beautiful cities in Spain. 9/10. Enjoy six very individual and stunningly beautiful train journeys from around the world. On each one we'll meet the people who work and live along the special rail line in six different countries.

Underground and Underwater. Sandi is joined by Zoe Lyons, Dan Tiernan, Josh Widdicombe and Alan Davies for an underground and underwater episode of QI. 14/14. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Ulex. Sandi Toksvig is joined by Bridget Christie, Rosie Jones, Cariad Lloyd and Alan Davies to find out about ulex and other obscure U words. 15/14. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Series 15, Episode 7. Jimmy Carr hosts as Jonathan Ross and Joe Wilkinson take on Roisin Conaty and Ahir Shah. Catherine Cohen joins Susie Dent in Dictionary Corner. With Dr Anne-Marie Imafidon at the Countdown Board. 7/14. Combining two of viewers' favourite shows means that viewers get to play along, a bonus for both quiz and comedy fans alike. Jimmy Carr hosts the famous words and numbers quiz, plus etymologist Susie Dent on the letters, and maths whizz Rachel Riley on the numbers.

Episode 6. Romesh Ranganathan hosts the quiz with Gareth Malone, Brian McFadden, Sam Thompson, Sindhu Vee, Desiree Burch, Lee Mead, Kiri Pritchard-McLean and Lauren Steadman and Julie Hesmondhalgh. 6/12. Comedian Romesh Ranganathan takes charge of the back-stabbing, big money, game show. Can the contestants create a chain of answers and avoid being the weakest link?

Series 4, Episode 9. Michael McIntyre looks back over his favourite surprises and pranks from the last four series of his Big Show. 9/9. Comedian Michael McIntyre presents the family entertainment series that guarantees big laughs, big stars and big surprises.

Series 31, Episode 4. Graham Norton presents a lively chat show featuring Patrick Stewart, Ralph Fiennes, Bella Ramsey, Dame Joan Collins, Layton Williams and Zak Abel. 4/21. Graham Norton introduces another instalment of his trademark mix of cheeky celebrity chat and live music performances.

Rap's New Frontline. Louis Theroux immerses himself in Florida's multimillion-dollar rap scene - as notorious for its controversy as its creativity. 2/3. Louis Theroux explores three controversial corners of American entertainment, and meets those accused of dangerous, toxic, and criminal behaviour.

Underground and Underwater. Sandi is joined by Zoe Lyons, Dan Tiernan, Josh Widdicombe and Alan Davies for an underground and underwater episode of QI. 14/14. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Ulex. Sandi Toksvig is joined by Bridget Christie, Rosie Jones, Cariad Lloyd and Alan Davies to find out about ulex and other obscure U words. 15/14. Panel game hosted in which celebrity guests have to answer questions, avoiding repeating common misconceptions and urban myths.

Episode 6. Romesh Ranganathan hosts the quiz with Gareth Malone, Brian McFadden, Sam Thompson, Sindhu Vee, Desiree Burch, Lee Mead, Kiri Pritchard-McLean and Lauren Steadman and Julie Hesmondhalgh. 6/12. Comedian Romesh Ranganathan takes charge of the back-stabbing, big money, game show. Can the contestants create a chain of answers and avoid being the weakest link?

Series 26, Episode 5. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of. 5/55. Quiz show in which contestants try to score as few points as possible by coming up with the answers that no-one else can think of.