Good Grief - S6-E1
Corrected entry: Frasier is getting everyone together to have a shot at the pinata and we can see a little girl in a bright pink dress running on the other side of the picnic table. As Frasier says "one for the children", she is suddenly standing right in front of him. There was no time for her to get there naturally.
Good Grief - S6-E1
Corrected entry: Frasier is at the picnic and is holding his rolled-up poster. He calls out "if I could have your attention please" and the next shot shows the poster has disappeared.
Correction: You can see for a fraction of a second he was moving his left hand towards the table while he was looking at it. Then, on the wide shot you can see the poster on the table.
Correction: From the time she was gone from the frame (7.55) to where she was in front of Frasier wasn't instantaneous. In fact, it was for more than a second. Given 1 second from a running start the girl would have been able to get to her position by running a length of about 6 - 8 feet, even without the time that was cut from editing. Frasier wasn't at the side of the picnic table when he started gathering everyone, then he was when he picked up the stick and said "Now, what we have here.".