TV Keeps rebooting

[istj]

Today, while the TV was on, I pressed the volume keys in the TV and suddenly the image disappeared and the on/off light turned off. Then, it entered the cycle in this video (Led goes on, some light appears in the screen; Led goes off and the light disappears; Led goes on, some light appears in the screen...)

http/www.youtube.com/watch?v=ozUke84WtkA

Also, the keys in the TV or the remote do nothing.

What's the problem? What can I do?

Thanks!

 

[das_stig]

Could be static electricity build up, had a similar thing happen to my Toshiba.

Pull the main plug, and then press and hold the power on button from the TV, not the remote to discharge.

Plug it all back in and try the remote.

If that fails, time to call in a repairer !

 

[istj]

Thanks for your answer das_stig
I have tried it but nothing changed ... And possibly a new TV would be cheaper than a repairer...

Any idea of what could be wrong? Maybe a bug in the firmware? (in that case, is there any way to factory reset the TV)?
Or a hardware problem?