How to watch iMac content on LG TV using Apple TV?
I have a 2019 iMac. I want to watch a computer-linked program on my tv. I use Apple TV device on my tv. How can I connect the IMac and my 2011 LG tv to accomplish this?
Apple TV 4K (2nd generation)
Question marked as
You will use AirPlay to stream a/v content from your Mac to the AppleTV device which is connected to your television, presumably via the HDMI port.
This is some of Apple's guidance on using and setting up the feature:
Stream video and audio with AirPlay - Apple Support
Use AirPlay to stream audio and video to Apple TV 4K - Apple Support