If you are sure that the original poster means that he disconnected one of
the cables that goes downstairs and connected it to the cable from the
antenna. What he said could also be interpreted to mean that he
disconnected a cable from one of the splitter outputs and connected the
cable from the antenna to this output (which of course would do nothing).
Nothing surprises me anymore. Anyhow, I guess if all else fails he can
connect a known good cable from the antenna to a new splitter(plus amplifier
if needed) and run four new cables from the splitter down to his 4 tv's.
Not a terribly difficult job if you've done this sort of thing before.

"Jeroni Paul" wrote in message
...
Why is everyone guessing the same? The poster said:

also connected the antenna to
each of splitter’s outputs (which go to TVs) – exactly the same
outcome -

which discards the splitter as a possible culprit. It must be these
cables going downstairs.

On 6 Des, 05:20, Shawn Hirn wrote:
My guess is the splitter is defective. Splitters are very inexpensive,
so try replacing it.- Amaga el text entre cometes -