Vsauce is a trilogy of YouTube channels hosted by Michael Stevens, Kevin Lieber, and Jake Roper respectively. The first channel, headed by Stevens, talks about the wonders of science and answers scientific questions. The second channel, hosted by Lieber, talks about awesome creations and "the best of the Internet". The third channel, run by Roper, talks about video game worlds and answers game-related questions.
DOT.: The main series on Vsauce 1note and since September 9, 2012 the only series on the channel. Questions are answered with a plethora of extra facts thrown into the mix. They're scientifically themed on Vsauce, but more video game themed on Vsauce 3, where the series is called HeadShot.
FAK: Short for Facts and Knowledge on crazy inventions, mind blowing tech, and more. Only on Vsauce 2.
Mind Blow: The latest in science and tech and other similar fields. Only Vsauce 2.
Book Ends: In some videos, Michael talks to the same person at the start as he does at the end. For example, in one video, Bill Nye asks him, "Why did the chicken cross the road?". At the end, Bill Nye returns.
Early-Installment Weirdness: The earliest videos of Michael's channel were VERY different compared to the later ones. The videos were more gaming-centric, featured multiple hosts and a sillier tone (similar to Barely Political's videos) as opposed to the more science-centric and serious videos of later.