The Sick Boy and the Sitter - S1-E1
Continuity mistake: The door in the kitchen is wide open in one scene and then the next time Laura and Rob go back into the kitchen the door is closed. (00:07:00 - 00:08:30)
The Sick Boy and the Sitter - S1-E1
Continuity mistake: In the opening scene when Laura answers the phone her hand is on the wall. The shot changes, her hand is now on her shirt.
The Sick Boy and the Sitter - S1-E1
Continuity mistake: Richie's room is completely different from this episode compared to the later episode "The Man from My Uncle."
The Sick Boy and the Sitter - S1-E1
Continuity mistake: The kitchen walls are completely different than the rest of the episodes. Also, there is no way to look into the living room from the kitchen at the sink. (They fixed that in episode 2 though).
The Sick Boy and the Sitter - S1-E1
Continuity mistake: In the 1st episode there are about 20 pictures behind the writers desk. Next episode... Gone, replaced with a giant bookshelf and a bunch of scripts. The bookshelf was behind the couch in the 1st episode.
Suggested correction: So they got a new bookshelf between episodes. Or they moved it from another, unseen part of the room.
I fixed it.
The Sick Boy and the Sitter - S1-E1
Continuity mistake: The whole kitchen is completely different from episode 2 onward till the end of the series. (Episode 2 onward it looks the same except for the outside behind the sliding glass door but the background is also flat. The house(s) and trees are flat, there are also no birds out there making any noise).
The Blonde-Haired Brunette - S1-E2
Continuity mistake: In "Sick boy and the Sitter" the door to the writers room says "Allen Brady Show WRITING STAFF" in a nice 3D all bold caps type font (except for the 1st "N"). In this episode the door then says "Alan Beady Show STAFF WRITERS" also all caps, not bold, and not 3D type font.
Sally and the Lab Technician - S1-E3
Continuity mistake: When Jamie Farr the "Snappy Service" guy comes in and gives everyone their coffee Buddy throws a straw into the straw cup, but it falls down on the floor then vanishes, never to be seen again.
To Tell or Not to Tell - S1-E8
Continuity mistake: In this episode Sally asks Rob if he has a brother, Rob says "Yes, but he is married." However his brother Stacy is trying to become engaged later in the series, in episodes "Stacy Petrie Part 1 and 2."
Continuity mistake: The "Staff Writers" door is backwards. In other episodes the door opens up to the right, not to the left. Also the door is a dark color normally, unlike this scene in this episode where it's a light color. (00:19:41)