On 02/06/2017 6:29 AM, Diesel wrote:
....

By swap do you mean you swapped the tv sets around? If that's what you
did, did the known working tv pickup the missing channels on the cable
wire the non working properly tv was just connected to?

If it did, you likely have an issue with the tuner itself inside the
tv. This might possibly actually be a known firmware issue and a fix
might be available for it. You may want to check with Toshiba's website
concerning your particular model TV concerning that.

+1

As I read OP's posting he didn't swap the TVs themselves but the lines
feeding each and the symptom stayed with the set; didn't follow the
line. Hence, that does seem to eliminate the input signal from the
candidate pool of issues.

"It's broke!" If there's firmware patch or other more drastic reset
that can fix it, I've no klew or even guess...

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