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The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
I have a 27" iMac A1312 (Mid 2010) running High Sierra (latest possible) and want to use it as the screen for my Apple TV. I've tried connecting it via HDMI<->Firewire cable but nothing happens. Can it possibly work? If so, how?
[Re-Titled by Moderator]
iMac 27″, macOS 10.13
Unfortunately there is no possibility to use iMac as Apple TV display.
Due to support page you need:
Set up your Apple TV - Apple Support
The Apple TV app on your iMac can do everything the Apple TV box can. In addition you can either download or use the websites of your various streaming subscriptions to view their contents.
In addition there are 27” HDTVs out there for less than $100 these days.
It will not work. A Mac isn’t able to use HDMI for input.
iMacs are computers, they are not external displays for other devices including other computers, Apple TV's, etc...
Is it possible to connect my Apple TV to an older 27” iMac (Mid 2010) running High Sierra?
