Although first aired in January 2002, the episode was completed prior to September 11, 2001. As Brian sings "You've Got A Lot To See" to a woman who has not left her house since 1960, they both see images of buildings constructed in the following years, including a lingering shot of the World Trade Center twin towers.
The episode won an Emmy Award for Outstanding Music and Lyrics - You've Got a Lot to See.
The binary number in the Helen Keller cutaway is "0110 1001" or "69".
Lois and Brian singing their conversation along to the piano student's exercises is taken almost exactly from Meredith Wilson's 1957 musical "The Music Man."
Omitted from ITV2 rerun June 2020.