Throughout the show's five-year run, viewers never find out Beth's last name. In the final season, when asked, Beth states she has no last name.
During the credits, Dave Foley's name is shown over a shot of the twin towers of the World Trade Center. The towers were nicknamed David and Nelson. Foley's character is named Dave Nelson. According to Paul Simms, the shows creator, this is just a coincidence.
The show was on the brink of cancellation every season that it was on.