These are the step by step guides to reset a many tv.
1. Press the "Power" button on the front of the television or on the remote.
2. Locate the "Reset" button on the bottom left of the Sanyo remote that came with the television. If using a universal remote, the "Reset" button may be elsewhere on the device. If you do not see the "Reset" button proceed directly to Step 3; otherwise skip to Step 4.
3. Press the "Menu" button on the remote. Scroll through the on-screen menu until you see the option to "Reset all settings" or "Factory reset." Use the remote directional buttons to navigate to the "Reset" option. Press "Enter" or "OK" on the universal remote. Press "Enter" or "OK" again to confirm the "Reset."
4. Press the "Reset" button. An on-screen message appears. Press "Reset" once again to confirm and reset all settings to the factory settings.
Power off the TV either by pulling the plug or pressing the power button on the TV. Then while pressing the reset button on the remote, power the TV back on by plugging it back in or pressing the power button on the TV itself. Keep on pressing the reset button on the remote until the TV screen comes on. It may blink for a second. That will reset your TV.