If you watch the episode entitled 'Ink and Incapability' you'll notice a pretty silly error.

There is a scene towards the end where Dr Johnson (Robbie Coltrane) is checking to see which words Prince George (Hugh Laurie) has underlined and says:

"Bloomers, bottom, burp?" <turns a page> "Fart, fiddle, fornicate???"

The point being that he only turns *one* page in the gigantic manuscript and somehow jumps from B to F!