[TOMT][VIDEO] An explanation of time travel in Harry Potter

There was this great video that explained how the time turner worked in the third book, by using a theory called "the perfect time loop." It was a commentary type video, with an American narrator speaking over various diagrams and pictures from the movies.

I remember distinct terms like "red o'clock" and "blue o'clock", and an example using Hermione's scheduled classes clashing and how she handled it. Anyone else seen this video?