Del Boy 46th birthday is coming up, making the year of birth 1940, although in that scene Rodney may be lying to make Del appear older. In "The Chance of a Lunchtime" (series 7, 1991), Trigger reveals that his sister has just had her 39th birthday and is 5 years younger than himself. Trigger and Del are the same age, suggesting a birth year of 1947 or 1948. "The Class of '62" (series 7, 1991) sees Del and friends attending a class reunion, suggesting a birth year of 1946 or 1947. The prequel drama "Rock & Chips", set in 1960, shows Del
Licensed to Drill This short episode was the final appearance of Grandad. As Rodney and Grandad watch a war movie, Del Boy who had earlier returned from the cafe with a magazine about oil and is now reading it while lying on the couch, begins educating his younger brother and grandfather, explaining all the products which would not exist without oil. He then insists that they watch a short film being shown on TV about the Maureen off shore oil rig. When the film is over, Del goes to bed after insisting that Rodney reads the magazine in time for an important business