Does the hotel have the obligation to play the publicity slogan required by the Public Security Bureau on the led screen?

From a legal point of view, there is no clause that forces you to play! However, some require the hotel to fulfill the obligation of informing, so you still have to cooperate.

To put it another way, as a hotel operator or practitioner, it is really irrational not to have a good relationship with law enforcement agencies, but to oppose them.

Suggestion: If there is such a request, it is definitely not aimed at your family. Why not go and see how other hotels face it? Maybe you can find the answer!