These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Designing Women
Replacement Scrappy: When Delta Burke decided to leave the series in 1991 (or was forced out by Linda Bloodworth-Thomason, depending on which version of events you believe), the writers brought in Emmy-nominated actress Julia Duffy to play the role of Julia and Suzanne's wealthy cousin Allison Sugarbaker to fill the void. But the audience never warmed to the character and Duffy was replaced after one season by stage veteran Judith Ivey, who played wealthy Texas widow Barbara Jean Poteet until the show's cancellation.
Also in 1991, Jean Smart vacated the role of Charlene and SNL alum Jan Hooks was brought in to play Carlene(Frazier) Dobber, who moved to Atlanta to be near her sister and eventually took over her job as office receptionist.
Hollywood Pudgy: Delta Burke's weight was up and down throughout the show. The character Charlene may also qualify because of an episode where all four women went to a spa. While Mary Jo and Julia were allowed to eat anything they wanted, Charlene and Suzanne had to stick (unhappily) to the diet menu. An interesting inversion with the first-season relationship Charlene has with an overweight man—she's embarrassed to be seen with him, but he's not allowed the same sympathy as Suzanne in later seasons.