Revealing mistake: When Dorothy and Blanche are in Rose's room, look at Baby. Its very obvious its just a stuffed toy pig. You can tell by the fluffy skin, the unnatural ear movement, and the covers would be moving up and down as its breathing. You can really tell its fake when Rose gets up off her bed. (01:08:45 - 01:10:25)
Continuity mistake: In this episode Blanche says she has had 4 children, but she has never owned a Mercedes. She offers one of her three sons (named Biff, Doug and Skippy) to Dorothy in order to let her keep the car. In other episodes she mentions daughters Rebecca and Janet frequently, and in the "To Catch a Neighbor" episode she mentions a son, Matthew, who is a CPA. That's at least six children by my count.
Chosen answer: Rose's husband Charlie died making love to her. There are at least 3 different ways Blanche's husband George is said to have died: 1. Blanche was getting a pedicure when he was killed. 2. He had a car accident and died. 3. He had been in a coma and died. In theory they could all be combined (he had a car accident, fell into a coma, then died while she was having a pedicure), but that's conjecture. I'm not sure how Sophia's husband Sal died.
The episode where Blanche said her husband was in a car accident, she said she was on the phone with an officer (who was eating potato chips, crunch) who was at the scene of the accident, and the officer said George was hit head on and died.