There Goes the Bride (1) - S6-E16
Continuity mistake: At the beginning of the episode, Rose says that Miles is in Europe with some students. The episode immediately before this one, however, revealed Miles being put back into a witness protection program, and leaving Rose.
There Goes the Bride (1) - S6-E16
Continuity mistake: As the show begins, an outside shot of the house shows that it is night. Then it cuts to the scene of Blanche and Sophia playing Chess in the kitchen - when Blanche is complaining about Sophia's "do-overs" you can see outside the kitchen window and it is daytime. After Rose walks in about 30 seconds later, you can see that it is night again.
Answer: Ice makers were a new invention, advertisement purposes.