Only Fools and Horses (1981)

The Frog's Legacy (Christmas special, 1987) A treasure hunt special: at a wedding, Del hears the story of Freddy the Frog, a bank robber who left his stolen gold to the boys' mother, and sets off after it. Along the way there are faulty computers, dubious massagers and Rodney's spell working at a funeral home. The real reason to watch is the seed it plants about Rodney's parentage, a thread the show keeps returning to for years. Lighter on set pieces than other specials, but essential for anyone following the family story.