At one point, to distract the convicts, the teacher reads Oscar Wilde's "The Ballad of Reading Gaol", which was first published in 1898. Two shows after this one, ("Riff-Raff") the Virginian and Trampas enlist in the Spanish-American War, also in 1898.

The episode title, "The Brazen Bell," is taken from the Oscar Wilde poem that Lilley reads to the convicts.