I'll have to save my "are these dots and Xs canonically sound" examination for my next rewatch. Also, it took me a good hour to figure out the relevance of 9/13 to SPN. I was like "I do not see how these numbers have any narrative relevance" but of course they don't; it's just the day 1x01 aired, because of course it is. Even if it's just a TV date, however, and therefore significantly less interesting to me than an in-narrative date, at least it's ours!
Happy September 13th! May you be raised like warriors, and masterfully infodump on a dimly lit stairwell today. <3