Factual error: In the season 3 opener, Sophia befriends an elderly gentleman and spends much of the episode on a boardwalk in Miami Beach. The set design, however, replicates nothing even close to Miami Beach. Instead of chrome and neon Art Deco it looks like a northern fishing village complete with netting and buoys.

Factual error: Angelo claims he promised their mother on her deathbed that he would become a priest, and Sophia says she promised she would marry someone else - and we assume she died before Sophia or Angelo got married to their spouses. However, in the episode where they are flashing back for Mother's Day, Sophia's mother is in this episode along with Sal (and she looks like an older version of Dorothy).

Plot hole: Sophia decides to move in with his son Phil and his wife, but later decides not to and she feels bad for Phil's wife. But in the episode "Ebbtide's Revenge" we learn that Sophia hates Phil's widow Angela and hasn't been to see him for 20 years.

Plot hole: Dorothy's son Michael is twenty-two years old in season three. When Sophia and Dorothy reminisce Brooklyn, NY, 1954, Dorothy asks Sophia to babysit her children, one of whom is Michael. Sophia refuses, so Dorothy says "I'll just leave them with Stan's mother." They talk about Michael screaming when Stan's mother was watching over them. If Michael was a baby in the fifties, he should be in his thirties in season three.