where did the shut off dot go?

[radio nut]

To help the performance of my Muntz tv I added a 3 amp power cord interference filter and then mounted a voltage dropping resistor so line voltage should be about 110 instead of 125 from the wall. I did notice my B+ was high before but I waited til now to work all the bugs out and now the set has a cleaner picture, and better sound.
Curious though......When I turn the set off I no longer have the shut off dot that this set did have.....Where did it go?