"The Legend of Brainy Yak" is the 64th episode of the series and the 6th(b) of Season 3 of Robotboy. In this episode, Professor Moshimo tells the story about an old animal friend of him called Brian, a yak from his childhood whom he made him smarter.
- This is Brainy Yak's (aka Brian) debut episode and shows how his grudge with Moshimo began.
- Donnie is seen paying Brian for test answers,
- Donnie also attends the same school as Tommy and his friends. He possibly skips a lot, which is why we don't see him there at all and why he gets home before Tommy as well.
- It's also revealed that Donnie is in high school, so he's around 14-15 years old.
- This is the second episode to not have Tommy and Robotboy as main characters the first time was Tummy Trouble.
- Kurt and Stu make a cameo teasing Brian, calling him "Bubble-Brain".
- Brian is very close to his mother, Moonglow, as seen when he sadly watches her sleep before he runs away.
- Moshimo is able to lift heavy objects, seen when he's lifting a barbel before Brian texted him.
- The website on which Brian places his resume is called "Badspace", a possible reference to Facebook and Myspace.
- General Yakitori and Felonious Hexx can be seen off to the side next to Brian's profile.
- This is the first episode Dave the Badger shows up in.
- Dave might be another genetic experiment of Moshimo's.
- Robotboy repeats a line he said in "Six-Million Euro Man", where he told Affenkugel, "No hurt Tommy!". Only in this episode he says, "No hurt Moshimo!".
- This is the first and only time Robotboy deactivates himself with the watch.
- The line of people for Brian's game booth includes:
- The blonde lady with the headband that is later seen in "C.H.O.P" and "Rats!"
- The large man with the green shirt who was first seen in "Robot Love" (with a blue shirt) and then later seen in "The Curse of Truckenstein" (with a green shirt) and "Knockoffs" (with a purple shirt).
- Ambassador Van der Schnitzel from "The Manchurian Robot"
- The short man from "Soothsayer"
- And the woman with the tiny dog from "Dog-Ra"
- Tommy's math/history teacher, who supposedly had black hair back then.
In other languages
|Int. Language||Int. Title||Translation|
|Dutch||De legende van Brian Koe||The Legend of Brian Cow|
|French||La légende du Yak surdoué||The Legend of the Gifted Yak|
|German||Die Legende vom Superhirn||The legend of the super brain|
|Spanish||la leyenda de Brainy-Yak||The legend of Brainy-Yak|