Dick's Ark - S6-E12
Character mistake: Sally tells Dick that he's jealous of her gig as a weather girl because he's never been on TV. However, Dick did appear on TV as a panellist on a talk show highlighting Dr. Strudwick's physics book in the season 4 episode Dick vs. Strudwick. Dick ended up turning the show into a Jerry Springer-like fiasco, and Sally even attended the taping. (00:10:40)
Dick Soup for the Soul - S6-E16
Audio problem: When Tommy is talking about how he recruited Sally to help him get into the fraternity, but has gone mad with power, at one point it switches to a wide shot and you can see his mouth isn't moving. (00:19:28)
Continuity mistake: When Caryn is on the desk, her back is to the class. After the pledge, when Dick says "never mind" and the camera angle changes, she's now facing the class.
![3rd Rock from the Sun mistake picture](/images/screenshots/217000-217999/217346_sm.jpg)
Continuity mistake: The devil horns, mustache and goatee that Tommy spray paints on the picture of Harry change appearance between shots. (00:16:40 - 00:17:15)
Mary Loves Scoochie (1) - S6-E17
Revealing mistake: The sword fight between Dick and the Black Knight was sped up in order to make their movements look more competent. Note the extras in the background moving unusually fast.