What do you guys think were the worst episodes of SBTB?

What do you guys think were the worst episodes of SBTB?
First season. I can't stand it when Mark-Paul looks so young, ugh! I prefer when he/they get older.

I'm not sure if there's a "Worst" episode, because I love them all, but I do think the show starting showing age in the last season, before Tori Came. The last few Kelly/Jesse one's I didn't like as much....One episode that comes to mind when thinking of Bad one's is probably "Screeches Spaghetti Sauce"....I know it's one of the most popular episodes, but It just didn't do it for me.