The Courtship of Eddie, Dan's Father - S3-E13
Trivia: Ned Beatty plays Ed Conner, the father of Dan Conner (John Goodman). In real life, Beatty is only fifteen years older than Goodman.
Trivia: In the flashback scene where Roseanne has given birth to DJ, the new-born baby is Mathew Fishman, the brother of Michael Fishman, who plays DJ. Matthew later appeared in Season 8, "The Fifties Show" episode as "Stinky."
Answer: Clearly, the only person who could truly answer this question would be a set designer for the series, or someone else directly connected to the series who would have this kind of detailed information. I looked on IMDb.com and Cheryl Lanner is credited as set designer through 1997. I quickly found her Facebook page, and I directed your question to her. After some time, Ms. Lanner has replied as follows: "I decorated the last season 1/2 but after 9 seasons the sofa just plain got worn out and had to be repaired from 8 years of usage. There was a board put on the sofa but as I've said, it was due to so much usage. If they had back problems I was unaware of them, but you can be assured that if that was the problem it would have been fixed immediately. Take care Michael!"
Michael Albert