Bobkatz5, it is beginning to sound like either you don't have a cable that is plugged in or there is a function on the tv that is not selected properly. If you are not getting any signal whatsoever, sounds like a cable is not connected.
Can DVD's be played thru the tv?
Have you ever received tv signals before this trip?
Your relatives may be playing a trick on you so you can spend more time with them!
How far are you away from a tv station?
I'll keep asking questions until we can narrow the problem down.
My daddy would say, get your head out of the tv and get outside!