For "fun and interesting" consider an LG WebOS TV. Many can be rooted[1] which allows installing a homebrew channel[2] of unauthorized apps or writing your own.
I initially did it for Jellyfin before they made it into the official app store, but the Moonlight game streaming app has unlocked many hours of entertainment.
I initially did it for Jellyfin before they made it into the official app store, but the Moonlight game streaming app has unlocked many hours of entertainment.
1. https://cani.rootmy.tv
2. https://www.webosbrew.org/