The design is easy, and it's pretty simple to find what you want. I like how you integrated the TV screen in your page. The popup is cool too, although I would center that in the middle of the screen (which is possible with JS).
But like, I was trying to listen to/view some stations from Mexico and I got only errors, one said that it can't open the link (obviously they changed it or it expired), some other errors were that the license of the server had expired.
Not your fault, but maybe you should implement some error checking (crontabbed), that would sort out deadlinks and disable them.
Or even better, you let your users sort them out. A "Report error" link next to each entry.
Another thing, just eye candy. Sometimes it says "No description found", I'd just use a
instead, or "N/A". Your message looks like an error, even though it (probably) means that there was no description added to the record. Looks more user friendly.
And another thing I noticed, when I choose a TV station and click the "pop out" link, it doesn't just popup, it reloads the entire page, and you get back to the countries page and I kind of lost my focus on where I were.
Code:
<a href="javascript:;" onclick="yourpopupcodehere">pop out</a>
I think that should solve the problem.
Tom
Edit: little html error