Are you a TF2 fan with a homebrewed 3DS? This is a pretty small community so probably not (if you are tho I would be pleasantly surprised)
But if you're interested, I found a way to modify every Meet The Team video through the Gameboy Advance AVI player. Make sure to extract the folder and follow the instructions in the "README" file if you're inexperienced. Feel free to ask me any questions or suggestions!