An 'Only Fools and Horses' musical is in the works.

Sir David Jason

Sir David Jason

Jim Sullivan - the son of the BBC sitcom's late creator and writer John Sullivan - is said to have written the show alongside comedian Paul Whitehouse, ahead of a potential run at the Theatre Royal, Haymarket, in February or March next year.

One theatre executive who saw a workshop of the 'Only Fools' show told the Daily Mail newspaper: "It was classy, and a lot of fun.

"Someone said they're going to have a Reliant Regal Supervan drive on stage, but I wasn't sure if they were serious or not."

Details of the musical are not yet known, but original actors Sir David Jason and Nicholas Lyndhurst - who played Derek 'Del Boy' Trotter and Rodney Trotter respectively - are not expected to be involved.

A spokesman at the Haymarket admitted they couldn't discuss the show and that no decisions had been finalised, and Paul's reps are said to have initially confirmed his involvement but haven't spoken about the show recently.

This comes after Sue Holderness - who played Marlene Boyce in the BBC sitcom - previously admitted she would be keen to reprise her role in an 'Only Fools' musical.

Speaking in 2011, she said: "We've often talked about a musical version.

"There is now a very strong possibility of it coming to the stage. I would be fine with going back in."

'Only Fools and Horses' first aired on September 8, 1981, and the show has gone down in British TV history after spanning seven series, 64 episodes and 16 specials.

The programme still holds the record for the largest audience for a British sitcom after 24.3 million tuned in to 'Time on Our Hands', the final episode of the 1996 Christmas trilogy.