The streets in Reggie Perrin's neighborhood, the signs for which he is regularly seen walking by to and from work ("Wordsworth Drive," "Tennyson Avenue" and "Coleridge Close") are named after the famous British 19th century poets, William Wordsworth, Alfred Lord Tennyson and Samuel Taylor Coleridge. In the last episode of the series, when Reginald Perrin has taken another executive job in a large corporation, like the one he had at the beginning of the series, the street signs when he walks to work now read Liebnitz Drive, Bertrand Russell Rise and Schopenhauer Grove. These streets are named after the philosophers Gottfried Wilhelm Leibniz, Bertrand Arthur William Russell and Arthur Schopenhauer.