THE MIDDLE - "The Smile" - While other kids begin receiving college acceptance letters and Axl still hasn't, Frankie and Mike begin to worry that their son's chances for a sports scholarship have passed him by. Meanwhile, Sue is determined to prove that smiling is contagious as a hypothesis for a school science project, and a relentless Brick begins pestering his parents for an iPad, on "The Middle," WEDNESDAY, FEBRUARY 6 (8:00-8:30 p.m., ET) on the ABC Television Network.JANUARY 31 (9:00-10:02 p.m., ET) on the ABC Television Network. (ABC/MICHAEL ANSELL) ELLIOT HEGARTY (DIRECTOR)