A subscription made through Roku can only be viewed on a Roku linked to the same Roku account as was used for the subscription.
You need to either:
- Add a separate Roku device to an HDMI port on the Google TV, link it to your existing Roku account, and view your subscription and all other Roku content that way, or...
- Subscribe to AMC+ directly with AMC on their website, install the AMC+ app to your Google TV, and view it that way. This will also permit you to view AMC+ on any platform they support (www.amcplus.com on a web browser, AMC+ app available on iPhone, iPad, Android, Fire TV, Apple TV, and Roku.)
Once it is working, log into your Roku account at my.roku.com and cancel your AMC+ account there to prevent it from receiving any future charges.
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Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X