Tv turns off and on over and over

Plug the power cord directly into a wall power outlet, and make sure that the standby light is lit (turn it on/off manually to see if anything changes). If there isn't any light, then it's most likely broken.
If the TV works again, being plugged into the power outlet in the wall, then the problem is with the cable box (i bet you figured that out too).

TRY THIS

1. • 1 Turn the TV off with the front-mounted power button, not the remote. Unplug the TV's power cord from the wall outlet. Let an hour pass before plugging the cord back into the wall outlet. Turn the TV back on with the front-mounted power button and wait until it has fully restarted. Bring up a TV channel to see if the image being presented on the LCD screen is no longer flickering. A momentary power surge can cause the circuitry inside the LG-brand LCD TV to function erratically.
     
   • 2 Unplug the video cable from the video connection on the back or side panel of the LG TV. If more than one video cable is connected to the TV, disconnect all of them. Disconnect the other end of the video cable from the video source device that it's attached to -- a DVD or Blu-ray player, or a satellite receiver or cable box. Blow off the connections on the video source device and on the back or side panel of the TV with bursts of compressed air. Reinsert one end of the video cable into the video source device and the other end into the video input that it was connected to. Turn the TV back on with is remote to see if the picture is now free of flickering. A loose or partially connected video cable can cause the LCD TV's screen to flicker when presenting an image.
     
   • 3 Turn the TV off and unplug its power cord from the wall outlet. Place a power conditioner next to the wall outlet. Plug the power conditioner's power cord into the wall outlet. Plug the TV's power cord into one of the AC sockets on the power conditioner. Turn the power conditioner on. Turn the TV on to see if the picture is now free of flickering. The RF signals in the electric line that the LG TV is drawing power from can cause flicking through interference patterns being generated.
     

Did you ever got the solution for this problem?

I have the same, I did notice that when I lift my tv from the bottom, attached to the wall support the tv turn on by itself, weird no?

There are many methods to do this.
If your cable are ONLY RED,WHITE,YELLOW
1 Plug the red white and yellow cables to there corrosponding jacks on your DVD player
2 Plug the red white and yellow cables to jacks labled video IN, Audio IN. They will be colored on the back of your Tv
3 Plug in the power cable.
4 Turn it on and flip through the inputs on your tv until you see the picture
IF your cables are RED, GREEN, BLUE, RED, AND WHITE
1 Your are using what is called conponent video. This is a high definition video.
2 Three of your plugs are for video. They are Red(Cr) Green(Y) and Blue(Cb)
3 Plug the GREEN into the Y jack
4 Plug the RED into the Cr jack
5 Plug the BLUE into the Cb jack
6 Plug your power cable int o the wall if you havent alredy done so
7 Plug the other red cable into the audio right jack
8 Plug the white cable into the audio left jack
9 Turn it on and surf through the input until you find it
If you have a BLACK, RED and WHITE
Do the same as RED WHITE and YELLOW but
1 Put the black cable into the s-video slot
2 Surf through the inputs until you find the picture
If you have ONE BLACK CABLE
1 This is called HDMI(High-definition multimedia interface)
2 Plug one end into the tv and the other inte you dvd

Thank you for your time, Good luck and I hope this works

Sounds like there is too much voltage going into the same outlet. Please keep in mind cable boxes as well as your tv hold a higher amount of voltage then your dvd player. If your tv is plugged into the back of your cable box, unplug that and just plug it directly into the wall. If not, get a power strip and plug it in that way.

Try connecting the TV directly to a different wall outlet and check. Try resetting the TV to the factory settings. If the issue persists, try power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue persists, then the TV requires service.

you might have shorted out the tv since tvs are not ment to be turned on with a wall switch you can take your tv to you local tv repair man it could be just a fuse or the power supply

Yes,

Plug it into a wall, turn the beeps to off, plug in a desk or table lamp, unplug the UPS from the wall and let it drain down to nothing with the lamp on. You may want to time this. This is how you break in a new battery too.

After its completely dead, unplug the lamp, plug it into the wall outlet and let it charge backup again.

You should not get the error message.

Now, if the error message is from your PC and you have the USB cable attached. Remove the USB cable from the UPS to the PC. using Add/Remove programs in Control Panel remove teh UPS software, have the UPS disc on hand first. Reboot. when you get your desktop, install the UPS software and do not attach the USB cable until told to do so or until the installation is complete and you have rebooted the PC. Reboot after installation whether it tells you to or not. During the system restart, plug the USB cable back in. You should be fine. If you continue to see this reporting error, download a program update for you UPS.

If you have any questions please ask using the comment box below.

Regards,
Worldvet

plug evey thing back how it was befor u unpluged the components to consolidate wall outputs.

Wow.. How is the TV plugged in? I had someone with a Samsung DLP do this but hers was plugged into the cable box that was plugged into the surround sound receiver which was plugged into a back up which was finally plugged into the wall. Feedback caused an electrical feedback causing really really odd tendencies.

Second, that connetion between panel and set has a row if pins make sure the second one is not bent because it could be on permanently or causing it to have a constant connection . It is so hard to explain this hope this helps.