Yeah "Numb" is my favorite, same with my boyfriend. The scene that's from Clay's view is heartbreaking (in a good way somehow). I also love the episode where Orel finds out that Clay is the Mayor...the look on both of their faces is classic.
I actually cried during certain episodes, especially during the third season. When Orel gives Shapey and Block the camera as a present I was just like, "OMG I HOPE THEY START MAKING MORE EPISODES FROM SHAPEY AND BLOCK'S VIEW!"....no one agrees that that's going to happen though 
"Orel, change is for hippies and underwear" ~Clay Puppington