5 секунд гугления и вуаля
For about 3 months now I've been using the C9 with state 1 "Start once the TV is turned off". I assumed wrongly that, because the option was showing "Start once the TV is turned off", I thought that was the currently selected setting.... I was wrong, you have to actually CLICK on it while it says "Start once the TV is turned off" and only then it activated and switches to "cancel schedule".
Anyway. I assumed it would do the 1 hour pixelrefresher every time I turn of the TV now. Wrong again. The setting reset itself after that 1 pixel refresh to state 1 ("Start once the TV is turned off").