Why can't my PS3 120Gb Slim Console display and turn off

One day I unpuged my ps3 while it was off and switch TV and then I puged it again on another TV and the I try turn on my ps3 with my controller and it did't then I turn it on with the power button it worked but it seemed not to show any display then I try turn it of with the power button it did turn off but I could still take open GTA out the ps3 then I turn it off by hold the power button then I tried use a different controller to turn it on it didn't then I tried put my ps3 on safe mod and couldn't see anything then I tried reset video whatever it still did't work then I went back to the first TV and it still didn't work so please help me people