Grandad (Only Fools and Horses) Grandad then moves in with his son Reg. The Trotters are at that time squeezed into a two-up two-down terraced house and Grandad is forced to share a bedroom with his grandson Del. He appears to enjoy a close relationship with his family and remains with them when they move to their new council flat in Nelson Mandela House (which was then known as the "Sir Walter Raleigh House"). Grandad is seen in the first series of Only Fools and Horses. Grandad is by this point aged in his mid seventies, largely infirm and useless and still living at Nelson
Only Fools and Horses mooted by Ray Butt, following the success of other sitcom crossovers such as "Dad's Army" and "Are You Being Served?". Sullivan wasn't keen, owing to his work on "Just Good Friends" as well as "Only Fools and Horses", and inexperience with the theatre, so nothing came of it. In July 2018, John Sullivan's son, Jim Sullivan, announced that an Only Fools and Horses musical was nearing completion, with a script by Jim Sullivan and Paul Whitehouse. Jim Sullivan said, "Back in 2010 my Dad had been toying with the possibility of a stage show but sadly didn’t get the chance