Responsibility for controlling someone else's TV/smart TV?

Question

Law in IT

Once, while in a clinic with children, I saw a TV on the wall in the corridor, they turned on cartoons to keep the children busy while they were waiting in line. Then we came to another floor, we were waiting in line in another office, there was also a TV on the wall, but it was turned off. The idea came to my mind to use a smartphone and the mi remote program (MI Remote), which, through the built-in IR diode in a smartphone, can control TVs and other devices.
Samsung TV, and the program only partially worked - I was able to turn it on, select the source - a USB flash drive (it is apparently already connected there somewhere behind the TV), and see a list of folders on it (yes, the cartoons are the same), but the arrow buttons and OK did not work (I suspect it was just necessary to update the program and try again). Meanwhile, the queue approached, and I turned off the TV.

Actually the question: Is this issue regulated somewhere in the laws? That is, is there a responsibility to CONTROL someone else's TV? After all, this has nothing to do with copying, destroying or intercepting information, and does not fit under the relevant law. It’s also hard to call it hooliganism (unless if you turn on porn there, it’s easy to do it right from your phone if there is wifi on the TV). I tried to google, there is nothing on this topic.