Question: I used to watch Square One a lot when I was a child. I remember "Mathnet" and "Mathman" and my question is, what was the name of Mathman's archnemesis that kept trying to prevent him from reaching his mathematical goals? — A.J., Flagstaff, Ariz.

Televisionary: The evil character who waited to eat the Pac-Man-like Mathman when he chose a wrong number on the Children's Television Workshop show (produced from 1987-92) was named Mr. Glitch.