Free for All - S1-E4
Continuity mistake: Throughout the episode, Number 6's lapels switch from having solid to broken white piping and back again.
Split Second to an Epitaph: Part 2 - S2-E3
Continuity mistake: When originally interviewed, Ironside holds up the police sketch. It is evident that it still is a bit rough as it has a line across the eyebrows. Later in the televised broadcast, the picture is completed, no roughness at all.
The Big Dog - S2-E11
Continuity mistake: As Joe and Bill take off to pursue the fleeing station wagon, Joe is talking to the mic in his right hand. When the camera cuts in for a close-up, it's in his left hand.