I wonder how it'd be rating if they just kept it at 7.30. Speaking for myself, watching it live at 8.30 throws off my whole night. Might not be the case for others, but 7.30s is kind of a sweet spot, post-dinner/during dinner to watch stuff. 8.30 to me seems like more of a commitment. This is watching live though. And caveat, if it wasn't for here. I wouldn't be watching live. I may not even be watching.
How is it for other people? Which works better for them?
With my current routine, I get home from the gym around 6.20 pm. Then with dinner and shower, there's still just an awkward amount of time to fill before the show starts. Where I just kind of do nothing. Not enough time to watch something else. Not enough time to do anything that needs to be done. Just kind of waste time watching pointless shit or waste time on the internet. Then when the shows over, it's too late to get into anything else. Just wind down before bed. Which is usually watching YouTube on the couch.
As opposed to 7.30pm. When the night just flows better. Get home. Shower. Dinner. Watch the show. Still have usable time for the evening where I can watch another series or do something that needs to be done.