OLED turning on/off
Like mentioned in #50:

If you turn off the OLED tv it does not get offline (layer 3 still available, therefore script still connected) right away from time to time. One should be able to turn on and off the TV at all times.

My guess is, currently untested, that we are safe to remove the connected check for turning on the TV. WoL is Layer 2 based - it does not depend on a disconnected/connected state to the API. Even when you turn on the TV while it is turned on it should not change anything.