Siri on Apple TV greyed out.

I have an Apple TV Gen 4 and 4K. The settings, Apple ID, Region and Language are the same on both. Siri works fine on the 4K. On the Gen 4 Siri is greyed out and cannot be turned on. Is there a fix for this problem and how do I do it??

Siri on Apple TV greyed out.
 
 
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