I was an A-V geek in high school, and on the day of Jimmy Carter's inauguration we were asked to tape the event for viewing by the students. Our school had was was then a fairly state of the art Sony black and white video camera and a separate recorder which was attached to a TV.
After the recording was finished, one of our crew decided to play a practical joke. He set up the camera, fast-forwarded the tape to the middle of the parade as Carter was walking down Pennsylvania Ave, and recorded himself mooning the camera.
I never knew if the tape was ever viewed, but I assume it was. In retrospect, it was probably the highlight of Carter's presidency.