Other mistake: Having thought that the kids were in trouble, or away when Jason and Maggie go away for the weekend, they call the next door neighbor to check on them and have them call them back at the hotel that they are staying, but they did not give a phone number to be called. A few minutes later, they call the police as there was no answer - and Maggie says "Jason, you didn't even give them a number to call us back" - but they didn't give the number to the neighbor, and the police would more than likely have it for caller ID reasons.
Misadventures in Babysitting - S1-E8
Other mistake: When Mr. McGuire is trying to get back into the house to check on how Lizzie is doing babysitting, the lock chain is on the door, so he grabs a saw to cut through it. He begins to saw it - however he forgot to take the yellow cover off of the metal blade. (00:18:40)
Other mistake: When Scooby is eating the hot dogs at the "Hotus Dogus" stand, his tail goes transparent.
Other mistake: In the episode where Tino is freaking out about the "FunVille" Arcade door looking like the mouth and face of a clown, it does. But in another episode I saw this morning (where Carver pretends to be all tough) the FunVille door is like any other normal door.