Thank you for the reply.
My original setup (CM 4220 antenna + HDHomeRun Dual tuner) was working fine for 5 years. Ignoring all the intermediate hijinks due to me trying to get a new tuner to work, I eventually returned to this original setup (with corrected tuner firmware), and it had stopped working (no reliable reception on any channel). I concluded I damaged my antenna and replaced it with the RCA Yagi.
I assume that if I replace my original antenna, it will still fail to work. I suppose I could replace it with a new identical unit (i.e., buy another CM 4220), but in evaluating this decision, it seemed like the RCA Yagi was a better choice given the channels I want to receive (especially the lone VHF channel).
Regarding the possibility of bad cabling / connections, wouldn't this affect all channels and not just one? Or is it possible that a bad connection can affect a single channel while not affecting others?
I haven't tried the tuner in the TV set, so I'll do that.
Viewing this problem a different way: if I were starting from scratch, given my location and desired channels, what antenna would this community recommend? I can't use indoor antennas, because my house uses radiant barrier materials.
Thanks!
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