Audio problem: When Lister and Rimmer see Cat just after Holly explains how he evolved, Rimmer runs at Cat screaming before he passes through him and we hear a crash off screen to indicate Rimmer has just run in to something. He is a hologram and is not solid, so no sound should be heard. [The original version did not have this mistake. The sound effect was added for the now defunct Remastered series.] (00:27:10)
Canoga Time - S1-E11
Audio problem: When Dan and Roseanne start throwing things in the yard, you can hear it's not hitting grass or a porch, it's hitting a floor (from the set it was filmed on).