From new romances to old secrets, fresh faces to familiar favorites, insiders from TV's hottest returning fall shows -- like Scandal and The Walking Dead -- give Us Weekly a sneak peek of the new season
The Big Bang Theory
Missing Leonard (Johnny Galecki) -- whose expedition is more like a booze cruise -- Sheldon (Jim Parsons) and Penny (Kaley Cuoco) "end up spending an abnormal amount of time together," says exec producer Steve Molaro. Meanwhile, Amy (Mayim Bialik) keeps "slowly dragging" Sheldon toward commitment.
Credit: Monty Brinton/CBS