Reading your profile... in the classroom/lab, what kind of video signal is everywhere? That's not great English but I hope you get the idea.
About your AVR, I recommend Yamaha. I've found they always perform great. They use a mic to set EQ, but you'll want to read about the system they use to do it, as it's different from Denon's and so performs differently.
One thing, though, is that their CI units don't have all the inputs you might think you need. A look at the back panel usually is accompanied by "where are the other inputs?" However, after some use of the Yamaha it seems that other units have more inputs than needed. Just be sure before you buy that you analyze your present needs and make a guess about adding other sources.
I think most installers who visit this site would recommend against Sony.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
