Hi I wasn’t too sure myself so had a quick google search. With Netflix and their interactive content it isn’t yet available on all devices including Samsung Smart TV’s ~possibly~ manufactured before 2015. Were your other TVs manufactured from 2015 onwards? They advise updating the TV software and updating Netflix to the most recent app, but if you have already done this or they’re already up to date it does seem likely that the model won’t be supported at the moment.
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