I just bought my first smart tv, a ue50tu7005kxxc.
Awesome tv, love everything about it. When I finished configuring it, the tv had automatically detected my tv box an Arris vip2262e v2 from the MEO Tv provider. The tv even added the MEO logo to the sources.
It worked 3 days. Then, while using the tv, it disappeared. I even say the MEO logo being removed from the sources.
I tryed to reset the tv to the default settings and restart the configuration from the beginning. I also performed a reset to the box, without success. None of those actions solved the problem.
Something odd occurred today, somehow while in the tv menu a big green option appeared asking if I want to reconfigure the tv. I said yes. While processing the tv discovered my Meo cable box as a Nowo cable box (not the same provider, and still didn't work) and on HDMI 2 it found my mini retro gaming console that it identified as an Apple TV.
I don't know much, but with the same inputs I already have 3 distinct results.