Trivia: Roseanne's three ex-husbands have appeared or worked on the show during its run. Her first husband, Bill Pentland, wrote a few episodes for the show and played Dan's friend, Freddy, in a season one episode. Tom Arnold, her second husband, played Arnie and was an executive producer. Finally, her third husband, Ben Thomas, had a cameo as a police officer who pulled her and Jackie over in an episode later in the show's run.
Trivia: At the end of the episode Nine is Enough there is a scene making a joke out of Dan being in shock about Roseanne being pregnant. In that scene they show Roseanne in the future with a pregnant belly wearing a maternity dress. In the very next episode, Two for One, she is in a maternity shop trying on that very same dress.
Trivia: The show's ninth and original final season received a great deal of backlash due to its differences from prior seasons, plot-twists and the revelation that Dan had died of a heart attack during the finale. When the series was revived in 2018 for a tenth season, it was revealed that outside of a few cheeky inside-jokes, the ninth season was going to be largely ignored and was no longer considered canonical, and that the entire original cast (including Dan) was set to return. (Whew!).