Do I still need any of my closed-circuit coax setup if we're going streaming?

[melanianz]

Hi! I teach a middle school broadcasting class. Our TV studio runs on a coaxial output that is then amplified to the rest of the school. In the process of our current remodel, workers have removed the coax outlets in our classrooms, and I'm told that our district is looking for streaming options; however, they want me to disassemble and reassemble the entire professionally-installed-10-years-ago studio "in case it's useful" to our streaming needs. Could this set-up possibly be useful to a live-stream broadcast in some way, or am I right in telling them that we should do away with it? Here is my equipment rack if you'd like a peek.

 

[americanaudiophile]

It should be possible to replace the piece of gear that sends the output over coax with something (maybe a PC) that will allow streaming. The real issue is whether the old studio is set up for HD quality work. SD will look pretty bad on HD projectors or screens.