Yeah, great series. I stumbled on the online videos a couple of years back.
Since I don’t go fishing much, I was just looking for one or two knots for fishing that cover most of my needs.
At that time the reigning champion was the palomar loop for attaching a hook (and it beat a great deal of other fancy knots) and the reigning champion for bending fishing line was the uniknot, I think it shared its place with the bloodknot but in their estimate the uni is slightly easier to tie (ymmw). I think later the palomar was beaten by the albright special.
Anyway, everybody was surprised about the palomar being so strong, because it is such a simple knot. For my needs I picked the palomar for the simplicity - security/strength ratio of that knot and the uni, as it is strong enough, not too complicated, relatively easy to tie and versatile. You can use it to attach a hook, snell knot, bend…
In fact I learned the uni first from a website, which said, in a nutshell: Why learn all sorts of fishing knots. Just learn the uni and use it for all tasks. (I think they called it the uni-knot-system). For somebody who does a lot of fishing this might just not be good enough, but for a casual angler as myself, it would do. Well, I decided to use the palomar and the uni, but I follow the same basic idea.
edit: just googled it and found this site: http://www.sportsmanschoice.com/terminal_tackle_knots.htm
This is not the page I was referring to, but at the bottom they show the uni-knot being used as a universal fishing knot.