I'll be honest, I had a VERY hard time learning this stitch. I suppose it had to do with the holding of the needles, holding the thread, not knitting too tight, my and well being impatient overall. I wanted to learn to knit and NOW. Haha, yeah, that wasn't going to happen.
Now, don't keep my follies from your wanting to learn to knit. With simple guiding and lots of practice, you'll get there probably quicker than I did! Visuals are very helpful to me and of course is why I'm making videos for you!
The first thing you need to do before you begin knitting is to cast-on the number of stitches you want. (Others would probably say figure out your gauge, size of needles you need/want, type of yarn you want, ect.) Those are important, yes, but that's not the purpose of this post at the moment. The number of stitches you cast-on determines the width of your work. Below I have my video on how to do the long tail cast-on. I feel it's the easiest and fastest cast-on, so it won't take much time to learn.
The second video is, as you've guessed, the knit stitch video. It's pretty simple once you get the hang of it. By using the knit stitch in every row you knit you will get what is called a 'garter stitch.' I have also seen it called 'plain knitting.' It's a simple horizontal ridged design that isn't very flashy, but is soft and comforting in my opinion.
Before you watch the videos, I wanted to mention that I do not hold the yarn in a traditional manner. I usually work the needles with my two hands and let the yarn hang, picking it up each time to wrap it around the needle. Yeah, it probably takes longer in the long run, but I like my hands to be free and have become comfortable with this 'style.' You can find the two most popular ways of holding the yarn and knitting here and here, if you're curious. :)