How much does video broadcasting on youtube benefit you academic life? Recently, I was working on implementing a new optimization approach to publish a paper. Additionally, I've also implemented the other famous existed methods in the area in order to demonstrate the efficacy of my approach.
It is worthwhile to note, I had a lot of difficulty in implementing the existed method as their Matlab code was not publicly available anywhere.
So, I thought it is useful to create a series of videos (4-5 video/ 15-20 min each) so that, other researcher can learn how to implement these famous methods in Matlab.
Thus, I need a good reason to do so. In other words, what is the outcome for me.
- Would they cite my youtube channel in their paper?
- Does it help my academic reputation?
- Does it help to get a better scholarship for Ph.D. program?
P.S.> I should note that, I have 3 published work in high-rank journals of my field. But if this idea (video broadcasting) doesn't have any significant outcome, I would stick to write another paper and save my time.
A publication will get you more than such a tutorial. It is unlikely that the video or the tutorial will be cited. I don't think it will help you in formal competitions. However, much competition is informal. Say you make your videos/manual and they are used. Next time you go to a conference you'll notice that will come to you just to see what Electricman looks like in real life. You'll be noticed and that can snowball. However, you need to make a trade-off. This is a rather "soft" benefit and there is no guarantee that it will happen. 

My experience along these lines is the following: I have shared a lot of tips on another statistical package because I liked doing that (some people have weird hobbies). Only later I noticed that it also benefited me (the last two jobs I received were definitely helped by my presence in this community). So if you like making videos and explaining things and you would do this as a hobby, then by all means go ahead and use the idea that it might also benefit you later on as an excuse to spend a bit more time on it (but not too much!!!).