The Man from My Uncle - S5-E27
Continuity mistake: When Rob and Harry are in Richie's room, it's bright and sunny outside. Six seconds later, they are in the living room, and it's pitch black outside.
The Man from My Uncle - S5-E27
Factual error: The Government Agent says "we want to use your house for base operation for looking at the house across the street. Rob says "Jerry helper!" yet Jerry lives on the same side of the street (closest to the den, across from Rob's bedroom). Someone has their houses mixed up.