When a show’s executive producer takes to his Twitter account to implore fans to watch (“New Chuck Monday. Building up to the finale. Will be blunt: get ppl to watch tmrrw!”) it’s never a good sign. But just how dire are things for CHUCK — a show no stranger to the bubble — with NBC’s May UpFront just around the corner? Nawfal Faizullah, special correspondent to theTVaddict.com, makes the case.