I have now replaced all cable prior to the splitter. I have replaced the 4-way splitter with a 2-way splitter and disconnected the cable going to the room without a TV - so no open connections. Still having trouble on real channel 38. It goes from having a great signal to having a lousy signal and back again (12-28dB according to my TV).
I do not think that anything is wrong with my components, especially since they have all been replaced now and all of the other channels are stable. This is just a crappy signal...thank you digital TV.
I appreciate all the troubleshooting advice, JC and GUM.
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