Years ago I used to have a program that let you watch over 50 TV channels from around the world but eventually they upgraded it to a pay model, It was Chinese peace of software so I have no clue as to what there web site was.
I used to love to watch Japanese MTV, some of the music videos where stunning and they seem to put a lot of effort into them.
Well no help is at hand while looking at the populicio.us a Del.icio.us based site that list new sites bookmarked in the last 24 and 48 hours by popularity, I found this little gem.
Ok so they have a limited show range but I happily watch the snowboarding video for about an hour before it started to loop.
They how ever link to Beelinetv.com which has a selection of on line channel from around the world. Most of the ones in English are American news channels, If you try some of the Dutch TV there is an MTV style channel in their.
No Jpop thou :( If any one has a link for Jpop leave it in a comment, I direct link to the stream if pos as I don't read Japanese.