Sophia mentions that she and Angela are the only ones left from the original family, but Sophia's brother Angelo is introduced later on in the series.
When the girls talk in the kitchen, the amount of chocolate cake on the plate changes between shots.
When Blanche tells the others about her rivalry with her sister she tells about when they were cheerleaders, but she talks about twirling batons as well as cheerleader moves. The writers obviously weren't familiar with the difference between cheerleaders and majorettes.