When I originally suggested a video, the intent was to eliminate some anxiety of those who think the "D"s are too complicated. They really aren't. One of the best examples of that statement is that you'll never do all the things that the PID controller can do. Having received my 3D at the first of the year, I was a bit like Old Sarge, in that I used my cheat sheet for a good while until I no longer needed it. In most cases, owners of the "D"s will only use the simplest and most basic programming. It's really all you need to know. I've never programmed past 3 steps of the 6 available. Usually, I use only step one or an additional program for hold temp. I've never "auto-tuned", and don't need to. If it works, don't fix it. (Although I did download the pdf instructions from the Auberins website)
What I have learned in retirement, is that I can do a lot of things that I never imagined. In the past 6 months, I've replaced motor mounts on my daughters car, repaired my refrigerator's freezer defrost heater, replaced blown speakers in my 02 Silverado and even eliminated a significant element of the mole population on my property, all from watching YouTube videos of those things being done. So, in a nutshell, videos can be helpful. Happy Smoking!