The man and woman in the photographs in the opening of the show, who are supposed to be Jean (DameJudi Dench) and Lionel (Geoffrey Palmer) when they first met, are actually Dench's daughter, Finty Williams, and Palmer's son.
In Season 2 Episode 3 (1992), Lionel comments on Rocky's lifestyle, in that "the way he goes about life, he's only got two or three years at best." In Season 3 Episode 2 (1993), Lionel is on the phone with Rocky's doctor, Dr. Field, and tells Jean that "the old fool will be lucky if he lasts another year." In Season 3 Episode 10, Madge admits to knowing that "Rocky isn't supposed to have very much time." Nothing else was mentioned about Rocky's health. Ironically, in real life, Joan Sims (who played Rocky's wife, Madge) died in 2001. Also, she was not featured in Season 8, which aired in 2000, even though she was referenced.