“How many people are actually recording 3 OTA programs while simultaneously watching a 4th?”
Well, I never EVER watch TV live. And why would you, outside of sports? I turn everything into on-demand.
And I have a couple of nights where I’m recording quite a bit of stuff–plenty of half hour and hour shows that overlap and end up using 4 tuners for a half hour or so.
I know someone who records every prime time show on every channel–because he can. He’s been doing this for 20 years, creating his own on-demand library. Back in the day, he did it on multiple ReplayTV units. When he traveled, he would take a few of them with him.