Amazon ‘bricked’ older Fire TV Sticks to push users to buy new models: lawsuit
(www.independent.co.uk)
Or just make your app so badly optimized that nothing other than the newest hardware can handle it!
I have a Toshiba TV with the FireTV built in (terrible idea and I hate it now). The entire TV runs off an AMAZON OS and the crappiest app on the entire suite of apps I have is AMAZON TV. (caps for emphasis that Amazon sucks at their own apps on their own OS)