Directed by: Friz Freleng
Starring: Mel Blanc
Genres: Animated, Family, Short
Continuity mistake: When Sylvester is testing the robot dog he has built, you can see there is a piece of paper underneath the radio control unit. In the next shot, the paper has gone.
Audio problem: When Sylvester is saying "Down, boy!" when the robot dog is attacking him, his mouth is not moving.
Continuity mistake: At the beginning of the short, there is nothing on the front gate door to Tweety's yard. But when Sylvester runs into the yard after throwing a smoke bomb into it, a door handle suddenly appears.
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