I have 2 TV sets in different floors of the house, for two scenarios:
1: Watch either from the one TV set or the other (i.e. not from both at the same time)
2. Watch two different programs at the same time.
What would I need please? Are two Internet Boxes needed? Is it possible any more to use the 2 devices we were plugging into electricity prises in the past and the signal would be transferred?
thank you