Same here! Every day, before I even started Kindergarten, I'd watch Scooby Doo reruns at 11 while I had lunch, then play outside for a bit, and come in around 3 to watch BTAS. When I did start school, my Kindergarten was split into morning and afternoon classes, and I was in the afternoon one. For some reason my brain remembers it as me picking that one so I could still watch my cartoons, but I'm sure that, even if I did have the option, my parents wouldn't have let me pick based solely on that logic. It was a happy coincidence though, so I'd watch Scooby at 11 before going to school, and because I was reading at a higher level than the rest of the class, I got to leave a little early each day, which got me home before BTAS aired. We lived on the other side of this little lake from the school, and it was the 90's, so I could just go to and from school by myself.
I remember getting to 1st Grade and having to be there for most of the day and being devastated at missing Scooby and Batman. Even though I'd probably seen all the episodes a couple times by then. And that's my villain origin story.