Emily Osment and Montana Jordan chat with ET's Denny Directo on set of the final season of 'Young Sheldon,' which premieres Feb. 15 on CBS. Emily praises her 'Hannah Montana' co-star Miley Cyrus' GRAMMY wins and reacts to a possible reboot. Plus, Emily and Montana open up about the final season of 'Young Sheldon' and share which items from set they want to take home with them.