Factual error: During Tony's assassination attempt he struggles with one of the "hit men" for control of a pistol. One can see that the pistol does not contain a magazine.This would limit the shooter to 1 shot, providing the pistol is not equipped with a "magazine disconnect" if it is than it can not be fired at all. It seems unlikely that a "hit man" would be so ill prepared.
Guy Walks Into a Psychiatrist's Office - S2-E1
Plot hole: In this episode Tony tells Janice that he has just put their mother's house on the market. In season one, the house had already been sold.
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Suggested correction: Tony and others say many things that aren't accurate. While season one gives the firm impression that the house is sold, it's not confirmed on screen. There may have been a deal where the intended buyer couldn't get financing or a closing never took place for other reasons.
Anthony 'Tony' Soprano Sr.: You got any idea what my life would be worth if certain people found out I checked into a laughing academy?
Question: When the not-so-dead Russian gets away from his pursuers, what happened to him? It seems to be implied that he doubled back and drove away in their car, but it was never really explained. Incidentally, there is no way that scene was filmed in the real Jersey Pine Barrens.
Answer: The show creators intentionally left it ambiguous as to what happened to Valery.