Not sure where or what is available, but I do know there are people with education in acoustics. Many of these may have started out looking at recording studio design, but the designs now carry over to real home theatres. Keep in mind, only a very small percentage of home theatres out there are built to these extreems.
Other than good sales and business courses, others can be taken like THX certification, ISF.
Cedia offers many courses at their annual convention (this year in Denver).
Many that do home theatres also are involved with home automation, which can require computer programming skills like C+ and Java, or look to the other side and understand architecture and building design.
Another big requirement that many in this business are just now finding out they need more knowledge of, networking and dealing with IP based systems. It's really only a matter of time before we start streaming HD content around our homes. Unfortunatly it will be hard lessons to learn, that you better not try to do this through a 200.00 linksys router.
There are few ideas and directions you can go. As a potential owner, you may want to be good at sales and business, with a modest understanding of the rest.
Im wanting to become a professional home theater installer and build a buisness some time in the future. Right now im going to my 1st year in college and I want to focus my major in to something that will help me in the home theater side of business. I do know that to become certified a professional I guess I would have to go to a THX course or something of the sort. I want my company to be part of the whole entire part of building the home theater room. I want to be able to go in on the design of the room all the way to the hooking up of electronics.
So im asking what would be help full areas or class's I could take make me successful in my dream.