TV says no signals

go into settings and put on game

What the TV is telling you is that the antenna connection is bad. Unplug the cable and reconnect it again and tighten it with a wrench or pliers so it is tight.

Check your inputs. The no signal box means exactly that - there's no incoming signal for the TV to decode. So you've either disconnected a cable somewhere or turned off your input device.
Try changing the inputs on the TV (this will be a button saying input or A/V)
Try changing the channels
Check that your cables are correctly connected and that whatever you are trying to use (dvd player, PS3, etc) is turned on.
Check that your TV is tuned to the corresponding input it is plugged in to (if you plugged your DVD player into HDMI input 8, tune your TV to input 8)
Hope this helps.

Tries tv unplug,replug it back like about an hour later.By letting the tv resetting itself back to the factory setting,see if this solved ur problems.Still have the same result.Tv have Tuner signal board have problems.The tv Tuner signal board is causes and the problems,it dead.That the board where the inconming broadcasting signal cable plug into.Tries webssites like Shopjimmy.com,Ebay.com to buy a refurbish tv Tuner signal board for the replacement.

It is a signal issue.

Make sure the sap is turned off. When turned on only a sap audio signal will appear at outputs. If no sap signal you have silence.

HD TVs do have different cables, I went to Time Warner and swapped my regular box for an HD box, the cable ends are blue red and white, I believe. Also in order for my box to work on the screen I have to switch to "Component" instead of "TV". Hope I helped!

Try selecting a different input, or checking the device which you are receiving the signal from. A blue screen typically indicates that there is no signal.

I would check the green signal all the wat to the display screen to determine is this is a signal problem or a system short. I would recommend that you take this set to a qualified electronics technician

Since the PIP is working properly, I would think that the set is hooked up properly. Make sure that the main picture (the one on the left), is on the proper Antenna input, I.e. antenna A. If the hook up is correct and all inputs are correct, then, the problem is probably the main tuner.