Fan Theory - The Healy's in Roseanne Are Imaginary
One of the things I always wondered while watching Roseanne when I was growing up was, why was David and Mark are always left out of the opening 'Dinner' scene. Even when that was changed to the ageing pictures, they were left out of that as well. I could see when they were recurring cast member, but the two became series mainstays they were still left out. The two married into the family, and David even became the Son the Conner's never had when he moved in with them. DJ was the same mean, screwed up child like his sisters, but David was the 'good' child.
So why were they always missing from Dinner? They don't really exist. They are figment