@maddogg666cj It's because from what i understand as a different time slot, dbs was on Sunday mornings in Japan while dbz was on Wednesday nights at 7. They are heavily regulated on what they can show, not to mention any laws that might have changed in 20 years in between the shows airing.
@draculllina I think part of it is that those older manga have more striking visual styles. They have larger differences between them that really pop out and look interesting. I personally like it because they actually made adult women look like adults. Lol