Until the technology arrives allowing this body to email itself to you and help you out in person, I'll have to try and give some directions:
-Actually, yes, it's a little bit like youtube. You can subscribe to podcasts (like you might subscribe to a channel on youtube).
iTunes lets you play music, videos etc which are already on your computer. You can also stream video like you would on youtube. Most common though, you would use iTunes to download music/video etc to your computer and then watch it.
So how to use it. You need to first download iTunes from here:
https://www.apple.com/itunes/download/
Download and install the file. When you run it the first time, it will give you some welcome messages / preference selections - don't worry too much about them.
What you really want is the iTunes-store. In iTunes, there will be a left-hand side column with a list of its activated functions (one will be iTunes store). Click it.
When it opens up the iTunes store, it will have a search box at top-right-hand side. It navigates a little bit like a browser at this stage.
Search for, say, 'Dallas Theological seminary' and it will bring up results categorised under 'iTunes U Collection' (these are University podcasts / lectures), 'Podcasts,' 'iPhone Apps,' 'Books' etc etc.
Click 'see all' next to the 'iTunes U Collection' and it will list all the iTunes U media related to 'Dallas theological seminary.'
Now click on 'Subscribe Free' under each of the lecture collections you are interested in. It will then begin to download lectures from these collections.
You can now close the iTunes Store or click on 'iTunes U' in the left-hand column of iTunes and you will see listed the iTunes U collections you subscribed to.
Click any collection you're interested in, and see what has been downloaded inside it. Double-click a podcast item to play it.
I hope this helps a little bit.
Play around with it, try out its functions and with time you'll have it figured out. . .
The lectures are worth the hassle of getting over the technology. . .
