Amen! User interfaces should have a rule: if it's there it should have either an on off setting or a user controlled timer. My pet peeve is LG's screensaving. When my PC screensaver kicks in, LG kicks on its quote screensaver quote. For those who don't know, LG's screensaver is a series of random full screen displays that cycle. After some 15 or 20 minutes of this hot mess, the television turns itself off. DISH TV is worse, as if that's possible. After a recorded video is finished, DISH sits at a menu for 10 minutes, then flips to whatever default channel is being played, if a recording starts up, video then flips to that.
But wait there's more! I have a splitter from the DISH system to a couple of televisions. Turn the Samsung on and the LG turns on. While some of this appears to be something the switch is doing, the LG is clearly playing along. The Samsung does not turn on when the LG powers up.