You can listen to Sun TV network’s Suryan FM online 24/7 at http://www.sfm935.in/ - Thanks Senthil@Houston 
I have to tell you, it feels good to listen to a live Tamil FM stream. IF you really like good ole’ Tamil movie songs from the 80/90s, the good time to listen would be at 6:30 PM CST - I think the program is called Kaalai Thendral. I have been listening to the stream for the past couple of days in the evening and its a bit relaxing listening to nostalgic ole’ songs returning back from work.
Suryan Fm, Aahaa Fm, Shyam Radio and 50+ Online Tamil fm Radios in one Site
http://www.tamilradios.com
Wow! That’s very interesting. The Tamil Radios site is really jam packed with useful information. I think it is very good to have internet radio because traditional radio just doesn’t give certain genres th play or interest it deserves. I wrote an article about streaming media and a new outlet. Please check it out at http://smartwealthsystem.wordpress.
Thanks,
Tina Phillips