Mr. Quizzer makes a rare on-location appearance, standing side-by-side with Boxcar in a train yard to dispel speculation that the two characters share some physical resemblance. One viewer had suggested that there was enough of a family resemblance between Quizzer and Boxcar that they could be "brother and sister", prompting Quizzer to wonder aloud which one of them is the "sister". At the end of the segment, Boxcar appropriates Mr. Quizzer's sign-off line ("Quizzer out!") as "Boxcar out!", and a thoroughly disgusted Mr. Quizzer mutters Boxcar's catchphrase, "Hachi-chachi". (In
Bonky Has a Blanky (2021), Mr. Quizzer foregoes his usual hair and makeup routine and appears on the show looking stubbly and disheveled, and wearing a beat-up top hat - rather similar to Boxcar's look, in fact.)