Wow, that's a wild moment. Explaining reruns really shows how much TV has changed. Kids today just pick any episode from a whole list. They don't know that feeling of waiting. Makes you feel old for a second, honestly. The whole world just moved on from that schedule.
Ha, yeah I've been through that exact thing with my nephew. Best way to handle it is to just say it's like when your DVR breaks and you have to wait for the show to come back on. They usually get it after that.