Character mistake: Upon hearing that Lister, Kryten, Cat, and Rimmer have travelled from Albion - England - to India, the woman in the market expresses surprise that they have travelled "halfway across the known world" just to buy lemons. In 23 AD, travelling from England to India was all the way across the known world. The Americas, Australasia, and China would have been completely unknown to a first-century Indian woman.
The Wedding - S8-E23
Character mistake: When Roseanne, Darlene, Jackie, Bev, Becky, and Nana Mary are dressing for Darlene's wedding, Nana Mary comments that all of them were pregnant when they married. However, Becky, was not pregnant when she and Mark eloped and they never had children together. Roseanne was not pregnant before marrying Dan. When the series began, Becky was 13 years old and Dan and Roseanne had been married 15 years.