Red Dwarf - Season 6 Episode 6

After Rimmer conducts a ""morale-meeting"", the crew find a cloud of fog from an imploded supernova and have no choice but to go through it. They get some bad turbulence, and Lister is injured revealing that he is an android! Kryten is angry that Lister is a lesser model then he and orders him to do all the work and even gives it to him for not having used a setsquare to cut the sandwiches. They find out they were in an unreality pocket, and Lister is indeed human. More of these unreality pockets pass until they decide to go into stasis until they get through the fog. In the centre of the fog they find a Space Corps derelict which is capable of time travel. They take the time drive and hook it up to Starbug's engines. After testing the time drive they are disappointed to find that although they can travel to any time in history, they are still in deep space, no closer to Earth than they were before. They return to their own time to find a future version of themselves. They invit