Did you wonder why the Modern Major General song sounded familiar? If so, this is the post for you. Many different versions have appeared in movies and TV shows, so it’s possible that you’ve seen one of them. There is a Wikipedia article devoted entirely to this song, with a whole section on movies and TV shows it has appeared in. You can also search YouTube to find various takes on the song.
Here is one nerdy version, which randomly appeared in the video game Mass Effect 2, with an awkward ending (start at 2:10):