Every season of Duck Quacks Don't Echo ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Duck Quacks Don't Echo!

Comedian Lee Mack is joined by Dara O'Briain, Melanie Chisholm and Ruth Jones for a riotous panel show that test-runs the world's most startling facts.

Episode 1

More fun facts are pulled out the bag as actress Olivia Colman, funnyman Rhod Gilbert and the Great British Bake Off's Paul Hollywood stop by the studio.

Episode 2

sh Bake Off presenter Sue Perkins, comedian Bob Mortimer and former JLS singer Aston Merrygold.

Episode 3

Lee Mack hosts as Miranda Hart, Stephen Graham and Richard Ayoade trade trivia titbits involving pigeons and breath-based gender tests.

Episode 4

Sneezing, sweating, household hovercrafts... Lee Mack covers all the bases with his latest guests, Sanjeev Bhaskar, Kathy Burke and John Hannah.

Episode 5

Stock up on weird and wonderful nuggets of knowledge courtesy of Lee Mack and guests Ricky Tomlinson, Jon Richardson and Sara Cox.

Episode 6

Jimmy Carr, Sir Terry Wogan and Carol Vorderman join Lee Mack for the final episode of the series of the fact-filled panel show.

Episode 7

A selection of previously unseen bits and highlights from the series in which Lee Mack tested random bits of trivia with a selection of guests.

Extra - Unseen Bits and Highlights

Lee Mack returns for a second series of the playful panel show and is joined by Got to Dance's Davina McCall, comedian Paddy McGuinness and actor Stephen Mangan.

Next to share their pearls of wisdom with host Lee Mack are TV presenter Holly Willoughby, comedian Dara O Briain and actor Hugh Dennis.

A League of Their Own's Freddie Flintoff, presenter Mel Giedroyc and comedian Johnny Vegas are the latest guests to join in the fact-sharing fun. Lee Mack hosts.

Join presenter Denise Van Outen, comedian Jason Manford and small-screen fave Richard Madeley as they share their nuggets of knowledge with host Lee Mack.

Dancing custard, colour-blind bulls, the power of Velcro... Lee Mack and guests Chris Packham, Kimberley Walsh and Jimmy Carr share more general knowledge gems.

Lee Mack sees out the second series of his hit panel show with the help of TV presenter Chris Tarrant, Got to Dance judge Kimberly Wyatt and comic Robert Webb.

Relive the most memorable moments from Series 2 of the riotous panel show.

The fact-busting comedy panel series hosted by Lee Mack returns as Jerry Springer, Emma Bunton and Jason Byrne put further fascinating titbits to the test.

Jerry Springer, Emma Bunton, Jason Byrne

Jonathan Ross, Dara O Briain and Alex Jones attempt to out-fact each other as startling theories are put to the test in Lee Mack's riotous panel show.

Jonathan Ross, Dara O Briain, Alex Jones

Lee Mack welcomes comedian Jimmy Carr, The Kaiser Chiefs' Ricky Wilson and TV presenter Jameela Jamil to join his fun and fact-filled panel show.

Jimmy Carr, Ricky Wilson, Jameela Jamil

More fun facts are put to the test as Lee Mack welcomes comedy queen Sarah Millican, explorer Sir Ranulph Fiennes and comedian Russell Kane to the studio.

Sarah Millican, Sir Ranulph Fiennes, Russell Kane

Comedy panel game in which host Lee Mack and his guests Heston Blumenthal, Bob Mortimer and Aisling Bea attempt to find the answers to all manner of questions, from random trivia to the downright daft

Heston Blumenthal, Bob Mortimer, Aisling Bea

Radio 4 presenter John Humphrys, stand-up comedian Ed Byrne and The IT Crowd star Katherine Parkinson all join host Lee Mack on the panel show, attempting to find the answers to all manner of questions, from random trivia to the downright daft

John Humphrys, Ed Byrne, Katherine Parkinson

Episodes star Stephen Mangan, Great British Bake Off co-host Sue Perkins and comedian Romesh Ranganathan join host Lee Mack on the panel show, attempting to find the answers to all manner of questions, from random trivia to the downright daft.

Stephen Mangan, Sue Perkins, Romesh Ranganathan

Relive the most memorable moments from series three of the riotous panel show hosted by Lee Mack.

Lee Mack returns with a new series of his hit panel show. First to sort their facts from their fiction are Dara O Briain, Davina McCall and Jessica Hynes.

Dara O'Briain, Davina McCall, Jessica Hynes

Lee Mack hosts the comedy panel game in which guests Sara Cox, Gregg Wallace and Rhod Gilbert reveal their favourite fact and try to find out if it is scientifically accurate.

Sara Cox, Gregg Wallace, Rhod Gilbert

Warwick Davis, Josh Widdicombe and Lorraine Kelly are next to put the world's most startling facts to the test as Lee Mack's riotous panel show continues.

Warwick Davis, Josh Widdicombe, Lorraine Kelly

Lee Mack hosts the comedy panel game, with guests Katherine Ryan, Hugh Dennis and Amir Khan revealing their favourite fact and trying to find out if it is scientifically accurate.

Katherine Ryan, Hugh Dennis, Amir Khan

Lee Mack hosts the comedy panel game, with guests Len Goodman, Jimmy Carr and Gabby Logan revealing their favourite facts and trying to find out if they are scientifically accurate.

Len Goodman, Jimmy Carr, Gabby Logan

Lee Mack hosts the comedy panel game, with comedian Bob Mortimer, The Last Leg's Alex Brooker and Strictly Come Dancing host Claudia Winkleman revealing their favourite facts and trying to find if they are scientifically accurate.

Bob Mortimer, Alex Brooker, Claudia Winkleman

Lee Mack hosts the comedy panel game, with actress Catherine Tate, Pointless co-host Richard Osman and Wild Things presenter Kate Humble revealing their favourite facts and trying to find if they are scientifically accurate.

Catherine Tate, Richard Osman, Kate Humble

A look back at the highlights of the fourth series of the comedy panel show that tests the validity of a range of weird and wonderful facts. Hosted by Lee Mack.

Best of Season 4

The fact-busting comedy panel series is back as Lee Mack is joined by Ross Kemp, Bob Mortimer and Sara Cox to put a host of fascinating titbits to the test.

Ross Kemp, Bob Mortimer, Sara Cox

Lee Mack is joined by Rhod Gilbert, Ruth Jones and Richard Madeley to test-run random bits of trivia and some of the world's most startling facts.

Rhod Gilbert, Ruth Jones, Richard Madeley

Claudia Winkleman, Johnny Vegas and Joe Lycett join Lee Mack to put a host of fascinating facts and trivial titbits to the test.

Claudia Winkleman, Johnny Vegas, Joe Lycett

Jason Byrne, Danny Dyer and Meera Syal join host Lee Mack to put more fascinating theories to the test.

Jason Byrne, Danny Dyer, Meera Syal

Danny Baker, Roisin Conaty, Jack Dee

Jo Brand, Philip Glenister, Josh Widdercombe

Paul Hollywood, Gabby Logan, Hal Cruttenden

Is our skin crawling with mites? Do we think we're better looking than we actually are? And do we enjoy movies more if someone spoils the ending? Martin Clunes, Jimmy Carr and Aisling Bea bid to find out.

Martin Clunes, Jimmy Carr, Aisling Bea

Rob Brydon, Emma Bunton, Carol Vorderman

Pull up a chair as host Lee Mack, The Great British Bake Off's Noel Fielding and comedians Roisin Conaty and Jason Manford go to any lengths to test wacky facts.

Noel Fielding, Roisin Conaty, Jason Manford

Alex Jones, Jason Byrne, Harry Enfield

Sir Trevor McDonald, Katherine Ryan, David Mitchell

Danny Baker, Alesha Dixon, Jon Richardson

Melanie C, Victoria Coren Mitchell, Rob Beckett

Best Of

Lee Mack wrangles a team of scientists and celebrity guests to find the truth behind the trivia on this bizarrely educational panel show.

The Best Seasons of Duck Quacks Don't Echo

The Best Seasons of Duck Quacks Don't Echo

Season 1

Season 2

Season 4

Season 3

Season 5

Season 6