There is a lock in the corner off the screen., how can i get it away. I dont have a manuel.

Hello
I think your TV has been locked, and you have forgotten the four digit V_Chip code you have entered earlier. If so there is a method to refresh the V-Chip code. The orginal code for the V-Chip, when the TV exits the factroy is set "0000".
You can set to this code by the following method.

Press the remote control keys in the following sequence, which reset the pin to "0000".

POWER OFF==> MUTE==> 8==> 2==> 4==> POWER ON.

TV will come with a fresh V-Chip code "0000", which you have to readjust to block any channels if you wants. Ok.