When Uncle Moodri is looking at television, Susan says to him, "I don't know how you can watch that." He is watching the Viaggio in fondo al mare (1964) episode Fatal Cargo (1967) in which a white gorilla runs amok aboard the S.S.R.N. Seaview. Emily is later seen watching the same episode in The First Cigar (1989).
George Francisco was born in 1925.
Susan Francisco was born in 1927.
Matt Sikes was born in October 1958.
Albert Einstein was born in 1939.