I use an AppleTV which makes my "dumb" TV act like a smart TV. That will enable your MacOS or iOS devices able to stream to your TV or even better the AppleTV can connect directly to your WiFi network and play anything on your Apple account without the use of a computer, tablet, or phone. Be sure and get the Apple TV with the big memory. Apps can eat up storage fast.
If we knew what it was we were doing, it wouldn't be called research, would it?
