I like the one where Dr. Z tells about how he got jerked off by a hvac tech, and then a bunch of his friends got jerked off, and then for the grand finale his wife explains how she got jerked off.
Another one of my favorites is the one titled HVAC: why are there so few black HVAC technicians? where DR. Z gives advice on why its better to hire blacks then whites.
And then in one that deals with ohming out compressors he advises to remove wires from the terminal block, something that the hvac industry considers to be an incorrect and dangerous practice.
Alot of his advice is incomplete, dangerous, and many times incorrect. I wonder if the school board in Florida that he works for knows that he is making all these videos in his work uniform and company vehicle. Seems like alot of liability and with him being in his company uniform and truck it's as if he's representing them.