Ok, here's the deal. I just realized that the kids aren't just messing with the settings, but apparently they are reverting to certain settings when the TV is turned off and back on. The color, sound, etc. The thing that irritates me the most is that the aspect ratio setting keeps reverting to 16:9, and I constantly have to set it back to "set by program" every time I turn the TV on. I don't know why it does this.