Don't these have some kind of basic "oh, I've had no signal for 10 minutes, guess I'll turn off"? I have two such displays in the office (Nec something) that h

Don't these have some kind of basic "oh, I've had no signal for 10 minutes, guess I'll turn off"? I have two such displays in the office (Nec something) that have input sensing and a shut-down timer. They're pretty old, too (they were already there when I joined 7 years ago).