When you go back in time to beat up your ancestor, you have to do it carefully unless you want to end up using the metric system! [spooky music plays]. That's just what Professor Farnsworth does in order to save his family name.

Other talking points are... shark jumping and also a lot of time travel philosophy. You might also accidentally learn something about history in this episode! It's edutainment!

Ben becomes a philosophy professor. Mike becomes Dilbert.

Music at the end of the episode is "Super Sunday" and used with permission. "Super Sunday" is provided by http://www.freesfx.co.uk.