This is just basically a personal tutorial or hack-challenge you could say for myself to understand certain things about youtube. My ultimate goal would be to be able to remove that youtube watermark in the bottom right corner. And yes, I know this in theory would go against their terms of service, but it's just for personal use, hack-challenge as explained earlier ;)
So when I embed a youtube video with an external third party player like jwplayer, at which point is that watermark added? Does the player do it or does youtube do it at their end before the player even receives the file from the youtube servers??