Yes Sir, That's My Baby - S1-E19
Continuity mistake: In the scene in bus station, when Mork is talking to the drunk sleeping person, he's holding a bag, there's a shot of the FBI man, and the next shot of Mork, he's not holding the bag anymore.
Continuity mistake: When Mindy falls out of the window onto the fire escape, a little bit of her hair comes out of the bun. In the close up, half of her hair is down.
Continuity mistake: At the beginning of the court scene, before Mindy and Fred enter, on the close up shot of Mork, there is someone in a suit standing behind him (looks like Fred). In the long shots, no one is behind him.
Mork in Love - S1-E5
Continuity mistake: In the scene where Mindy shows Mork the differences between herself and the mannequin Dolly, Dolly is in a different position in every shot. Her legs are sticking straight out when she first 'sits' down, then bent down, then straight out again, then closer together and the left shoe is on backwards, then her right shoe is backwards, then she's tilted to the left and finally she's sitting straight up.
Continuity mistake: In all episodes, shots and zooms from outside onto Mindy's apartment show a different front of windows than from the inside. That includes size (width vs. height), glass patterns and coloring, and distance between single windows. Even the glass patterns seen from outside occasionally change from episode to episode. From the inside there is a door (to the staircase) between the small window to the right and the bow-front. From the outside, space for a door or a staircase is completely missing.