I'm streaming a basketball game and one computer, but I want to simutainiously share to another computer in the house I'm streaming a basketball game on one computer, but I want to simultainiously share to another computer in the house. Is this possible?

Thanks
VNC connection is rather slow and without audio. I would recomment NoMachine if You want to stream video and audio. It works really well especially on LAN. It uses video codecs and smart compression mechanisms to keep the stream fluid. Interface is not as good as native Apple app though.
It's free for private use.