Dynamic chat system?

I'm trying to build a live wrestling/sports streaming site and would like a real time chat system embedded on each individual video page (not a comment system). The problem is though, I need each chat to be unique to that video page (ex: /page1.html is a different chat from /page2.html).

Are there any chat frameworks that already have this function? If not, where should I start my search? What language(s) would be best suited for this implementation?

Thanks SO, and Happy Holidays.