I wasn't going to reply because the thread was so old, but I want to add some things.
First, to the OP, welcome to the forum!
Second, "conference room" doesn't necessarily imply something that requires a very expensive solution. You're sounding like TLS, Bored.
So, I don't agree that there are "fails" in the OP's post. Somebody just wants to hook up some inputs to a TV.