bedroom TV never working

I was hoping some of you KZ owners could help me out....I believe my TV splitter box is bad ?? When on Air antenna my down stairs TV is fine...my TV in the bedroom gets ZERO channels.. i tried swapping around the wires and was able to get 4 stations up stairs while I was getting 10 or so downstairs.. There is a JUMBLE of wires behind there and none of them are marked??And on the 2nd TV side of the box , there are 2 different wires coming off both with splitters going to 2 more each HELP !!! If anyone from KZ is reading this PLEASE HELP , I have had this issue since new !....