The Baranoff Timetable - S2-E21
Continuity mistake: Ortega takes Mundy's shoes (with lock picks hidden in the heels) and locks him up. Mundy soon has the confiscated shoes back on again, though, even before he escapes the cell. (00:40:00)
Continuity mistake: Just before they leave for the meeting at Lottie's Place, Jason places a hand on Jeremy's shoulder. When the shot cuts, his hand jumps to a much lower position on Jeremy's forearm. (00:41:05)
The Incomparable Connie Walker - S1-E18
Continuity mistake: "The Incomparable Connie Walker": When Dillon visits Mayor Walker's house, Walker's red carnation is on his left lapel. But one shot of him is, for some reason, reversed, causing the carnation to switch itself to his right lapel for a moment.
Simon the Pieman/A Mad Mad Tea Party - S1-E12
Continuity mistake: In "Simon the Pieman," Commissioner Gordon was wearing a grey suit, but in one scene when he was telling Bruce about Simon's crimes, his suit is now red, just like Bruce's.