let me hook u up real nice nice....
for challenger events go to
http://new.livestream.com/ATP
for Wta and ATP events (they usually never show qualifying)
http://www.tvole.com/ ----- my go to... one of the best sites i've came across, not only do they have major american sports, but they also carry almost every televised international sporting event (international basketball, handball, etc.) really dope site
http://www.wiziwig.tv/
and of course for all the major atp and wta matches you can go to sites like firstrow, vip, etc