Red Dwarf

This was a short filmed for BBC's Children In Need (an annual charity telethon in the UK). Aired between Seasons 7 and 8. It introduced the new Blue Midget set. Anxious not to give anything away (most importantly, Rimmer's resurrection), Rimmer was wearing his old costume, including his 'H'. This means the short cannot be fit into continuity but, hey, it's just for charity. The Children In Need telethons are a regular feature in the UK, and there are a number of other shows, such as Dr. Who (2005), which also have crossover episodes that fit into the telethons.