It's spoilery and you can read it in
http://blog.zap2it.com/korbitv/2008/09/the-premiere-th.html Quotes: "...Is your relationship with Jared and Jensen like that?
I love those two guys. They’re a joy to go to work with. I always get a big hug from them whenever I show up for an episode... and then it takes me about three days for my ribs to stop hurting. Really strong men. I gotta start working out..."
A S4/1 preview in
http://blogcritics.org/archives/2008/09/17/235555.php