I agreed with "two" or maybe an automatic commercial "volume DECREASER", hehe).
Having jumped into the HDTV world, I find there is two annoyances that should be automatically managed.
One: The set analyzes the picture and automatically sets the best picture shape (which you can change if it wasn't right, the set would learn from its mistakes)
Two: automatically stabilize the sound like used to be available from Magnavox, when the Smothers Brothers would hawk them,or fron "TV Sound Stabilizer" available as add in box. I am SO over turning the audio down for commercials.
I have seen this technology (both) and know that the processor and programming involved would not add too much to the set price.