Has anyone else seen this? Cos I haven't seen it mentioned on here
https://www.youtube.com/watch?v=xRKl4NJ9BGk
Yep, I did. If I recall properly, the thumbnail was used and photoshopped into TI-83 CE once back in 2013 or so.
Anyway this is just someone who put a Game Boy Color/Advance inside a TI-83 Plus case. This was kinda common back in the 2000's, but only with the grayscale Game Boy, so that the teacher doesn't notice.