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.
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.
Guy Walks Into a Psychiatrist's Office - S2-E1
Visible crew/equipment: In the scene right after Tony is talking to Janice by the pool, when it cuts to the Bada Bing and we see Chris in the mirror, there is a very noticeable cameraman standing behind him. (00:26:50)
Guy Walks Into a Psychiatrist's Office - S2-E1
Revealing mistake: Christopher is seen sniffing some lines of coke, but he is just moving the dollar bill up and down not sniffing anything at all.