It sounds like yoru PS3 has stopped handshaking with your tv. It can happen. It's possible your brother disrupted the connection by unplugging the PS3 before it was shut down. You can try turning on the PS3 first, and then turning on the tv, or vice versa. If that doesn't work, you may need to invest in a cheap HDMI splitter, to plug the PS3 into, and then send the signal from the splitter to the TV. It has happened to me with a computer with the same hardware, once with an LED tv, and once with my surround sound receiver, completely out of the blue. You can try switching HDMI cables, sources, doing putting the tv into maintenance mode and resetting the software. If none of that works, your only option may be to use an HDMI splitter. I did extensive research and read numerous reviews before I settled on this model, due to many recommendations:
ViewHD 2 Port 1x2 Powered HDMI Mini Splitter for 1080P & 3D ' Model: VHD-1X2MN3D
It's available on Amazon here:
Amazon com ViewHD 2 Port 1x2 Powered HDMI Mini Splitter for 1080P 3D Model...
Just in case your HDMI cable was damaged when your brother unplugged it, go ahead and get yourself a decent HDMI cable. The Amazon HDMI cables work just fine.
If you need further help, I’m available over the phone at
https://www.6ya.com/expert/reginald_bec291de192ca44f
When I turn it on on my downstairs tv I have no sound nor video...same goes with any other channels on any other tv, but on the HDMI I get both video and sound.
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