Air Play

Hello Rpmerrill,

It sounds like you are unable to mirror your Mac with your TV. We understand how important this is to you and we are here to help.

These articles may be able to help:

Use AirPlay to stream what’s on your Mac to an HDTV

If screen mirroring or streaming isn't working on your AirPlay-compatible device

If the issue persists, can you provide a few more details? Has your Mac ever been able to AirPlay previously? Also, which Mac and macOS version are you currently using?

Cheers!

Rpmerrill,

Thank you for those details. First, let's verify your TV model appears on this list: Home accessories

Specifically the section titled "AirPlay 2–Enabled TVs and Devices"

If it does, you may need a newer macOS version. Your Mac is compatible with macOS Big Sur: macOS Big Sur is compatible with these computers

Let's back up your device with Time Machine and upgrade using this article: How to get old versions of macOS

Let us know the results.

Good Luck!