Is this affecting all Sony television models?

No, only televisions released before 2020.

When will this take effect?

The app will no longer be available from late July 2026.

Do I need to do anything?

No, you do not need to remove anything at your end.

If you attempt to load Great! Player on an affected model you will see an information screen advising you it is no longer available.

Am I able to continue watching Great! content another way?

Yes - you can find more information about Great! and how to continue watching on their website FAQ.