Knock Knock
A woodpecker (Woody) repeatedly pecks the roof of Andy Panda's and his father's home. Daddy sets out to stop it.
- Year: 1940
- Country: United States of America
- Genre: Animation, Comedy
- Studio: Walter Lantz Productions
- Keyword: roof, cartoon bear, irritation, cartoon bird, noise, cartoon panda, cartoon woodpecker
- Director: Walter Lantz, Alex Lovy
- Cast: Sara Berner, Mel Blanc