Goof. Mark's British car has the steering wheel on the left (American) side.
Mr Beaumont contemplates the phrase, 'for whom the bell tolls.' This is a line taken from John Donne's Devotions upon Emergent Occasions, Meditation 17, first published in 1624.
The opening shot includes the title 'Somewhere in England.' The scene in the background is actually of the Houses of Parliament and Big Ben in London.
Mark: (talking about the archaic family home he's inherited) They don't make 'em like this anymore.
April: No, the insurance companies won't let them.
Beaumont: Eccentricity is no crime in England , Mr Waverly.
In this episode there are numerous references to 'a dog on the moor.' This is an illusion to Sir Arthur Conan Doyle's famous Sherlock Holmes novel, The Hound of the Baskervilles.