Yeah, the races are live at 7:30-8:30am here on the east coast of the US, some people think I'm nuts for getting up that early. This year, I've taped a good bit of them to sleep in and watched it later.
I used to pull all-nighters when in college, but I'd tape it in case plans fell through around 5am....zzzzzz
The TV stations don't have much competition at 8am on a Sunday, it's either church or a few news reports, so it has to be cable. And braodcasters can forget about tape-delaying F1 racing when football, baseball, golf, and NASCAR are far more popular during mid-day.
This is also a big reason F1 will never be a huge hit in the US. No major network will ever live it down if an F1 race had taken the time slot that was supposed to go to a Sunday church service.
Secondary networks usually have local programming (it's the only time they can fit it in), and thus, it has to go to channels like ESPN or SC/SV. Even then, it wasn't generating the ratings ESPN wanted, SportsCenter (a sports re-cap show) did much better. So it bounced around, and hopefully has a home.
I'm still debating whether I'll care next year...I'm sure by February, I'll have all the typical GP-withdrawl symptoms, and set my VCR a week in advance of the race!