In past JTS polls, Lost has ranked high among the all-time "never jumped" series. But our question is, with all of the recent time-travel sequences (enough to make even our heads spin a little), is there such a thing as time-jumping the shark?
Whether it's Julia Roberts on Friends or Robin Williams on Law & Order: SVU, ratings spike and Emmy nominations roll in for stunt casting. Lately, Chuck has had a parade of guest stars, including Nicole Richie and the recently announced Chevy Chase and Scott Bakula. Do high-profile guest stars take you out of the story, or do you love familiar faces?