All my life in the Eastern Time Zone, Primetime tv started at 8 pm and ended at 11pm. Many times I was too tired to watch a show that started at 10 pm and ended at 11 pm. I would fall asleep in the middle of the program, usually around 10:30 pm.
Here in Texas, in the Central Time Zone, Primetime is 7 pm. Monday nights, I watch 911 Lone Star, All Rise, and The Good Doctor.
Ane what is even better, The programs that used to start at 10 pm back home start at 9 pm and end at 10 pm here in the Central Time Zone.
Eat your heart out family and friends on the Eastern Time Zone that falls asleep at 10:30 pm and miss the end of your favorite program.