You can AirPlay from a Mac by going to System Preferences, then Displays to get the AirPlay option and click the box to show AirPlay in the menu bar. In the YouTube TV app, tap what you want to watch and it should play.You should see your iPhone mirrored on the Roku. Under the 'speakers and TVs' pop up select your Roku.Tap the casting icon in the upper right and choose AirPlay and Bluetooth devices.Open up the YouTube TV app on your iPhone/iPad/iPod Touch.To use AirPlay with Roku, the first step is to make sure your Roku is updated to the latest software and that your Apple device is on the same Wi-Fi network as your Roku. If you don't have an Apple device and/or a compatible Roku, you can try Roku's screen mirroring function (see below). A Mac computer (running MacOS Mojave 10.14.5 or later).An iPhone, iPad or iPod Touch (running iOS 12.3 or later).Roku's support page says 'Devices running Roku OS 10.0 will receive AirPlay support in batches in the coming weeks.' You can check compatible Roku devices here.

Note that non-4K Roku TVs and streamers like the Roku Express will also be getting access to AirPlay.

You can check the software by going to Settings, then System and About.

4K Roku TV or 4K Roku streamer, including the Ultra, Streaming Stick Plus, Premiere or Streambar, running Roku OS 9.4 or later.

Per Roku's support page, the following devices are required for AirPlay: Numerous Roku devices now support Apple's AirPlay 2. How to stream YouTube TV via AirPlay on Roku If you don't have an Apple device, you could also use Roku's built-in screen mirroring, which works with most Android phones and Windows PCs. The easiest option is to use Apple AirPlay, which requires an Apple iPhone, iPad or Mac, and a Roku streamer or TV.

It's similar to what we recommended during a similar dispute between Roku and HBO Max. Thankfully for new subscribers and anyone else who wants to watch YouTube TV on Roku, there's a decent workaround.

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