The order might have been the reverse of that, I dunno. To block all channels you go into the "Safety" settings, enter the default password, and move them all to deleted and locked. Then you can still select a channel in the LG channels screen but it won't display, and it will start back up at that screen instead of the loud static. It would still be better if we could start directly to Apps but at least now I don't need to worry as much about blowing out my ears and speakers every time I turn on my expensive new TV.