Tianmin D6 TV box problem, living room and bedroom each have a TV, can I plug in two

My home is also D6,But I didn't use the connection method you said,I think it should be okay what you said,But where are you going to put the set-top box?,If the TV is too far away from the set-top box, the signal will attenuate。

Watch can be watched, but two TVs.

You can only watch the same station at the same time.