I've tested a lot of TVs, and I think RGB backlight systems could be what moves display quality forward. I've seen two models from Hisense and Samsung and I'm impressed.

The Arduino comparisons don’t stop there: [Andrzej] also maintains UnoLib, a Pascal library for the Arduino Uno and compatible boards with some of the functionality you’d expect from Arduino ...

The RMT peripheral of the ESP32 is used for controlling up to 8 LED "strands" (in whatever form factor the serially-chained LEDs are placed). These strands are independently controlled and buffered.

ELK-BLEDOM-bluetooth-led-strip-controller Controller for sending commands to Chinese generic Bluetooth receiver ELK-BLEDOM on most RGB LED strips.