"Bandersnatch," the new episode, is an interactive choose-your-own adventure style show where you make the decisions on how the story progresses. As it turns out, the interactive feature does not work on the Apple TV, Chromecast, the Windows App, or browsers using Silverlight.
According to a Netflix support document, its interactive content is limited to smart TVs, streaming media players, game consoles, iOS devices, and Android devices running the latest version of the Netflix app.
Those with Apple devices are going to want to use an iPhone, iPad, or web browser to watch "Bandersnatch" to get the full experience. If you try to watch on the Apple TV, you will see a message that the interactive content can't be displayed, with Netflix recommending that you watch on another device. From Netflix's website:
Black Mirror: Bandersnatch is only available on devices that support interactive content. No linear version is available.
If you attempt to watch Black Mirror: Bandersnatch on a device that does not support interactive content, you will be instructed to switch to a supported device.
"Black Mirror: Bandersnatch" is available as of this morning on Netflix. You can make sure you're watching a the episode on a compatible device if you see a red badge in the corner of the display.