I was hooking my HD cable box's coax output to my Tosh 42H81, when suddenly the audio cut out. Now it doesn't matter what I'm inputting to my set -- DVD player, Xbox, Cable box -- the audio is gone, except for the very lowest frequencies. So when the program contains male dialog, I can hear a muffled bass sound (but it's completely unintelligible). Has this happened to anyone else? I could have sworn that the audio cut out the instant the coax cable made contact with the female coax-in on the set, but maybe it was just a coincidence.