Here is my 4 months old TCL556us...
https://www.youtube.com/watch?v=D1EBPIOnmmQ&t=4s.
I have a 30 mbps Fiber connection and it can stream 4k videos/movies from Netflix & YouTube. The "Smart Tv" function is buggy and I don't really like it. I only using this for PS4 Pro
gaming, Netflix, YouTube and local tv programs with TV Plus. Forget about the built-in tv tuner, pangit ang lalabas even using the same outdoor antenna with the tv plus box. BTW use
the tv plus with hdmi output. Picture quality is good, slick design cya so maganda tingnan, naka wall mount ito ngayon at may kasama na pala cyang wall mount bracket. No bluetooth function, sometimes napuputol yung wifi connection nya, when watching Youtube, pero sa Netflix tuloy-tuloy naman, hindi ko alam kung bakit. Overall impression maganda cya for the price.