Duck Quacks Don't Echo - Season 4

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.

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.

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.

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.

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.

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.

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.

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.