when i first got my iPhone, i was watching youtube... and the quality SUCKED... but im like eh i still like the phone. but i was at my bf house and i was connected to the wifi, the video quality was sooooo clear that i couldnt put down the phone and kept on watching hella videos. is it the connection to the wifi that made my quality so much better? is it cause the edge super slow thats why the quality is so bad when im not connected to the wifi?