Just checked the TV guide. Nothin.
Google>PN website>Sched>Convert for timezones
The only people up that late/early on a Saturday night/Sunday morning are drug addicts, the exceptionally elderly, and insomniacs. The vast majority of these folks aren't going to have any interest in your shows. Hell, even the drunks will have fallen asleep by that time. Anybody who could watch during those hours will be on a fixed income, unable to afford project vehicles, and definitely unlikely and unable to buy product from sponsors.
I agree with almost everything you said, except this. 3rd shifters are up at the hour, including the weekends. My normal shift is 11pm-7am and IF I have the weekend off, I keep that same schedule. And no, I'm not on a fixed income either, but I'm also not paying $50 a year to watch 4 shows...one of which (as you stated) has been ruined.