I have a question about The Cosby Show pilot episode. In the scene where Clair asks Cliff "why do we have 4 children?" then Cliff answers "because we did not want 5". Why was Sondra excluded? Did they exclude her because she wasn't supposed to be part of the cast? Also Clair was a housewife with no job in the pilot and then she became a lawyer from the 2nd episode on. The house also was different in that they had a cheap looking stairway in the pilot and the dining room table was in the front room. Why did everything change from the 2nd episode on?