They are deceptively simple. I admit that. But for me, all my life I try to simplify things. As a child in school, things were very hard for me to understand often, and I developed a knack, I think. I developed a process to simplify things so I would understand them.
Eight o'clock is hard no matter what network you're on because people have to make a decision to sit down and start watching TV. Every other time slot is a time slot that happens after someone's watching something else.