Confidence and Paranoia

[6] While snooping through Kristine Kochanski's quarters for her hologram disc, despite the fact they were not decontaminated, Dave Lister (Craig Charles) contracts a mutated strain of pneumonia.

The condition causes Lister to become delirious and experience hallucinations, all of which become physical in presence, including fish raining in his sleeping quarters (which Cat (Danny John-Jules) later eats), and the Mayor of Warsaw from 1546 appearing and then spontaneously combusting.

While on a spacewalk to recover the hologram disc, Lister questions Paranoia's actions, only to learn that Confidence was the culprit and had murdered the other to spend more time with him.

So the ending of "Confidence and Paranoia" was changed to have a duplicate of Rimmer resurrected instead, and this cliffhanger continued into the series finale "Me²".

[13] Changes throughout the series included replacement of the opening credits,[14] giving the picture a colour grade and filmising,[15] computer generated special effects of Red Dwarf[16] and many more visual and audio enhancements.

[16] Changes specific to "Confidence and Paranoia" include a new recorded Holly joke to replace the opening 'post office worker' gag, dramatic music cue added to Lister's collapse due to the mutated illness and a CGI scene of Red Dwarf travelling through the dust storm.