I just wanted to say, before 12th season I gave a long pause to SPN until the Scoobynatural (13x16) episode came along and I had to (!) watch all the episodes just to see Scoobynatural and I couldn't stop it there. SPN is my all time fav and
I'm soooo glad to rewatch all and find distinct but small connections between 2nd and 13th season ahahah <3 <3 <3.