Tested on Fedora 34 & macOS Catalina + Big Sur + Monterey.
Prerequisites:
google chrome, ruby, yt-dlp and ffmpeg (dnf install / brew install)
ruby fileutils gem (gem install fileutils)
How to use:
Go to mtv.com and go copy the url of a desired show / episode.
Run this ruby script ruby mtv_grab.rb and then paste in the url when it asks.
The program will handle the rest. Enjoy.