in the old house we have, we have 2 coaxial outlets for the tv (living room: CoA and office CoB). after getting comcast cable installed, CoB started working right away while the same tv (10incher CRT for testing) can't pick up anything for CoA.
after getting a tone cable tester
i was able to deduct the that CoA and CoB must be on a splitter somewhere in the wall. they seem to go to the same connector basement (CoBasement).
the puzzling piece is that although both cables seems to be intact as basement connector can pick up the pulse from both CoA and CoB. CoA doesn't seems to be able to get a signal from comcast. Furthermore, connecting the tone tracer to the connector in the basement, both CoA and CoB can pick up the tone suggesting that it's indeed a splitter and the connection is good..
so lies the question.. why can't i pick up a tv single from CoA when CoB has no problems watching TV??? help before i start breaking the walls apart..