Some Mothers Do 'Ave 'Em. Frank Spencer (Michael Crawford). Copyright: BBC

Ever Decreasing Circles. Image shows from L to R: Ann Bryce (Penelope Wilton), Martin Bryce (Richard Briers). Copyright: BBC

Bottom. Image shows from L to R: Richie Richard (Rik Mayall), Eddie Hitler (Adrian Edmondson). Copyright: BBC

Dad's Army. Image shows from L to R: Private Godfrey (Arnold Ridley), Lance Corporal Jones (Clive Dunn), Private Walker (James Beck), Captain Mainwaring (Arthur Lowe), Private Frazer (John Laurie), Sergeant Wilson (John Le Mesurier), Private Pike (Ian Lavender)

'Allo 'Allo!. Image shows from L to R: Edith Melba Artois (Carmen Silvera), René François Artois (Gorden Kaye), Yvette Carte-Blanche (Vicki Michelle). Copyright: BBC

Are You Being Served?. Image shows from L to R: Mrs. Betty Slocombe (Mollie Sugden), Miss Shirley Brahms (Wendy Richard), Mr. Dick Lucas (Trevor Bannister), Mr. Cuthbert Rumbold (Nicholas Smith), Mr. Mash (Larry Martyn), Mr. Ernest Grainger (Arthur Brough), Mr. Wilberforce Humphries (John Inman), Captain Stephen Peacock (Frank Thornton). Copyright: BBC

Butterflies. Image shows from L to R: Ben Parkinson (Geoffrey Palmer), Ria Parkinson (Wendy Craig)

George & Mildred. Image shows from L to R: Mildred Roper (Yootha Joyce), George Roper (Brian Murphy). Copyright: Thames Television

Man About The House. Image shows from L to R: Chrissy Plummer (Paula Wilcox), Robin Tripp (Richard O'Sullivan), Jo (Sally Thomsett). Copyright: Thames Television

My Family. Image shows from L to R: Michael Harper (Gabriel Thomson), Susan Harper (Zoë Wanamaker), Ben Harper (Robert Lindsay), Janey Harper (Daniela Denby-Ashe)

On The Buses. Stan Butler (Reg Varney). Copyright: London Weekend Television

Only Fools And Horses. Image shows from L to R: Rodney (Nicholas Lyndhurst), Del (David Jason), Grandad (Lennard Pearce). Copyright: BBC

Open All Hours. Image shows from L to R: Nurse Gladys Emmanuel (Lynda Baron), Granville (David Jason), Albert Arkwright (Ronnie Barker). Copyright: BBC

Porridge. Image shows from L to R: Mr. Mackay (Fulton Mackay), Fletcher (Ronnie Barker), Godber (Richard Beckinsale). Copyright: BBC

Steptoe And Son. Image shows from L to R: Albert Steptoe (Wilfrid Brambell), Harold Steptoe (Harry H. Corbett). Copyright: BBC

The Brittas Empire. Gordon Brittas (Chris Barrie). Copyright: BBC

The Royle Family. Image shows from L to R: Denise Royle / Best (Caroline Aherne), Dave Best (Craig Cash), Jim Royle (Ricky Tomlinson), Antony Royle (Ralf Little)

Till Death Us Do Part. Image shows from L to R: Mike Rawlins (Anthony Booth), Rita Rawlins (Una Stubbs), Alf Garnett (Warren Mitchell), Else Garnett (Dandy Nichols). Copyright: BBC

Never Mind The Quality, Feel The Width. Emmanuel 'Manny' Cohen (John Bluthal). Copyright: Thames Television

Are You Being Served?. Mrs. Betty Slocombe (Mollie Sugden). Copyright: BBC