I know with my Mac I can use Apple TV to display my screen on my TV. But I also use Windows at home and want to do the same thing. Is there some way to project from my Windows computer to my TV?
Yes there is. When I bought my new Surface Windows computer at the store there was a device for $40 that you could attach to most newer TV's that would allow any Bluetooth computer to wirelessly show the computer screen on your TV.
It uses a technique called Miracast. So for very little cost you can give presentations or simply project your computer on many TV Do a search for Miracast Computer TV presentation and you will find many options.