The 90-minute feature-length retrospective, titled Open All Hours: Inside Out, is set to air on U&GOLD in 2026.
The special will feature Sir David as Granville closing his Doncaster shop, alongside exclusive behind-the-scenes moments, the actor's fondest memories, and a new short scene penned by original writer Roy Clarke.
Sir David Jason, 85, stated that the BBC show holds a very special place in his heart, having played Granville for over half his life.
Open All Hours first aired as a pilot in 1973, became a full series from 1976 to 1985, and was later rebooted as Still Open All Hours from 2013 to 2019.