Buy a desktop, can even be an old one I picked mine up for $200 from a used electronic store. Buy a wireless keyboard and mouse, buy and HDMI cord.
Setup a shortcut on your desktop to each of the major streaming services you want.
Boom everything you could want or need, if you don't like the idea of a mouse Vimium extension allows you to everything from the keyboard. Also you can install uBlock origin to deal with pesky ads.
You know who doesn't deal with a completely hijacked interface and can customize things to how he wants while also being able to play steam games on my TV? This guy.
If your skeptical just give it a try and prepare to be surprised.