How to download youtube videos manually in seconds

Now we'll learn how 2 download 4m Youtube manually by using two letters
OK
Yes ...ONLY oK
I know that you can download any video by using IDM or any download program
It works great manually.

Let's start ...
F u have da Youtube link like dat:

http://www.youtube.com/watch?v=koJlIGDImiU&feature=fvst

Just put OK like dat :

http://www.okyoutube.com/watch?v=koJlIGDImiU&feature=fvst

then click enter
it will be downloaded