When we turn the TV on after hooking up to cable we receive this message on the screen - UNUSABLE SIGNAL

Assuming you have a TV hooked up to some kind of cable box, I would venture to say the TV is telling you it is not receiving a signal from the cable box.
Two things could be the problem;
1 You are on the wrong channel to receive a signal - some boxes send the signal to you on channel 3 - if your TV somehow got changed to channel 4, for example, it would not recognize the signal from the box. Make sure you are on the correct channel setting.
2. The cable box may not be turned on or formated properly. Turn the box off and then back on after a few minutes. Follow any messages on the screen on the box for a proper start-up.

If nothing helps, call your cable company for assistance..

In settings you have to run auto scan to find signal.
Should work for both TV's

I can;t keep my DISH satillite to turn on. when I turn the tv on and hook up the cales i get unusable signal and blue screen

No you dont need cable the game consoles can hook right to the t.v. Try hitting t.v video and seeing if its on another video channel. also make sure all of the rca jacks are hooked into the in on the t.v

first , auto program you tv ,if still the same , your tv need to re solder. if you know how to solder,. Solder the tuner the jungle ic and system ic, but be careful of short circuit.

im having the same problem on my RCA P61960 61" i just moved and it might have got bumped a bit not sure but when i try to use my component video hook up i get a blurry distorted picture for a few seconds then i get an unusable signal message if i change my input to just cable it works fine please help

I have exactly the same problem, with my RCA F27645. I can find no answers on the internet, so far.

I have 3 ideas.

1) The digital signal receiver must not be receiving the DVD signal properly.

2) Coaxial cable receiver (the little pin plug) problem

3) Digital TV (broadcasts) causing havoc on older TVs.

Usually need a second receiver. Cannot just split signal. With some cable providers you can split the cable before it hits the cable box for basic cable channels.

Suggest contacting Cable Company if does not work.

Thanks!

Could be a bad buffer/amp or bad tuner, depending on source selected....accordianman