Signing in directly to YouTube on older Chromecast devices is not supported. If you’re having trouble signing in to YouTube with your Google Account, you can get help signing in.
Troubleshoot sign in issues on your smart TV or game console Within the Accounts tab, select the account you’d like to use for YouTube.At the top, select the profile picture.Select the account you’d like to use for YouTube.Open the YouTube app on your TV or game console.To switch between signed in accounts in the YouTube app on your smart TV or game console:
If you need to add an account, use the instructions above and then use the instructions here to switch between accounts. If you enabled the Automatically check for updates feature, a notification will appear on your TV when the update is available. The date your TV will receive the software update will vary. For 2020, 2019, and 2018 models, the Apple TV app will be available with a TV software update.
For 2021 or later models, the Apple TV app will be available with a Google sign-in on your Sony Google TV.For more information about Apple TV and Apple TV+ apps, or how to buy, rent, or subscribe to content, visit the Apple support site (Link to an external site). You may buy, rent, or subscribe to content through an iPhone, iPad, or other supported device and watch through the Apple TV or Apple TV+ app on your Sony TV.