All my tv's run off a central location, which used to include cable but now has a DVDR with an amplified antenna that brings in my city and the next one.
One tv is supplied a signal through a splitter/amp and a cable, and the sound is fine.
The kitchen tv has lately developed bad sound. Words are intelligible but sort of staticy or distorted. Sometimes it's worse than others. Its signal is supplied through the same splitter/amp, another splitter, another splitter/amp, and a long cable,
If you were a betting man, where would the most likely problem be, in the kitchen TV (which is 20 or so years old), the cable, or that second amp, which has been sitting on the basement floor and running constantly, needing no attention, for 39 years?