“An audiobook of a television episode,” Sheldon said aloud. “That is a categorical violation of media ontology. Television is visual. Books are textual. This is... a hybrid abomination.”
"The Sin of Greed and a Chimichanga from Chi-Chi's" young sheldon s03e08 m4b
In the M4B, there was no laugh. Just silence. Then the narrator: “Sheldon considered this. It was not a satisfactory answer. But it was, perhaps, the only honest one.” “An audiobook of a television episode,” Sheldon said
Enthusiasts use software (such as ffmpeg or video conversion suites like HandBrake with specific audio settings) to: Books are textual
In the audiobook, there were no visuals of the fish tank’s bubbling filter, no shot of Sheldon’s foot tapping in rhythmic anxiety. Just the words. And somehow, that made it worse—or better.
You might see this episode listed with an extension in certain media archives. While Young Sheldon is a TV show (typically .mp4 or .mkv), the .m4b extension has a specific purpose: