Yeti or Not is an episode of the ALVINNN!!! and The Chipmunks series.
On a ski trip, Alvin convinces Theodore there’s a Yeti nearby, making life miserable for the rest of the family.
- Alvin Seville
- Simon Seville
- Theodore Seville
- Brittany Miller
- Jeanette Miller
- Eleanor Miller
- Dave Seville
- "A Hero All Along" 
- The episode title is a pun on the phrase "Ready or Not."
- This is the first episode of the series where Brittany is seen without makeup.
- At the beginning of the episode, Alvin attempts a yoga move called "downward chipmunk.", which may be a reference to him doing a similar move called "downward munk" in Alvin and The Chipmunks: The Road Chip.
- The song in this episode was written by AwkwardMarina.
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