Go ahead and install https://github.com/chros73/bscpylgtv using pip install bscpylgtv or compile from source.
bscpylgtvcommand <your-TV-ip-address> launch_app_with_params com.webos.app.factorywin "{\"id\":\"executeFactory\", \"irKey\":\"inStart\"}"
0413
Navigate to OLED → TPC Enable and set it to Off or 0.
Run the same command again to save and exit