Tidal rolled out Dolby Atmos music support for Apple TV 4K last year. To enjoy the top-end sound quality, Apple TV users need to have an active Tidal HiFi subscription and the latest version of the Tidal for Apple TV app. As for the hardware, the Dolby Atmos compatible audio hardware is in need.
In the following parts, I would like to share two simple methods to guide you to listen to Tidal on Apple TV. One is available forever, and the other one is available during the subscription.

Part 1. How to Get Tidal on Apple TV for Listening Forever

This long-lasting method requires the use of a Tidal Music Downloader to download and convert Tidal music in advance. After conversion, you can import the Tidal music files to Apple TV as the common audio files. Then listen to them on Apple TV without using the Tidal for Apple TV app.
It looks a little bit complicated, right? But once you download all your loved Tidal tracks in this way, you can forever enjoy any Tidal song on Apple TV without a Tidal subscription.
You may wonder whether this tool will damage the HIFI quality. AudKit Tidizer features as keeping lossless sound quality by offering customized output settings. Just reset the output format to FLAC, bitrate to 16 bit, sample rate to 44100Hz to maintain Tidal HIFI quality.

Part 2. Detailed Steps to Stream Tidal Music to Apple TV

Step 1: Download Tidizer Music Converter
Download, install and register for AudKit Tidizer Music Converter. Launch it. The Tidal music app will pop up automatically.
Step 2: Import Tidal Files to Tidizer
Select the track or playlist that you want to convert. Then hit "Share" > "Copy Track Link" or "Copy Playlist Link". Now paste the link to Tidizer's search bar.
Step 3: Start Converting Tidal music
Towards the bottom of Tidizer, you will see the "Convert" tab. Click on it to begin the conversion. When music items are converted, hit the converted icon to check and locate the file.

Step 4: Stream Tidal Track Files to Apple TV
1. Open the iTunes app on the computer.
2. Click the "File" option and choose "Add File to Library". Go through the Tidal track that you want to listen to on Apple TV.
3. Click the "File" again, go to "Home Sharing", and now toggle the "Turn on Home Sharing".
4. Enter your Apple ID credentials on Apple TV, and you are ready to enjoy Tidal songs on Apple TV.

Part 3. How to Install Tidal on Apple TV
You can also follow the steps below to listen to Tidal on Apple TV with a Tidal HIFI subscription.
Step 1. Turn on Apple TV. Go to the App Store to install the Tidal app.
Step 2. On the device, find and install the Tidal app. Now, go to TIDAL.com.
Step 3. If you are already a Tidal user, log in to your account. Otherwise, click on the signup option to create a new account.
Step 4. Your Apple TV will display a code. Please copy the code and enter it on your Tidal app. When the connection is done, then you can listen to Tidal music on your Apple TV.