LG InstaView. An exterior window into the door-in-door compartment remains darkened until you knock on it, signaling the window to light up so you can peek inside. Get the best deals on LG Refrigerators when you shop the largest online selection at eBay.com. LG LFXC24796D InstaView Door-in-Door Counter-Depth Refrigerator review: The biggest knock on this fridge is the price Ry Crist Oct. 29, 2016 6:00 a.m. PT Free shipping on many items | Browse your favorite brands | affordable prices. Think of the time and energy that will be … LG refrigerators come with a host of innovative features that complement a range of lifestyles and kitchen configurations. From our French 3-door and 4-door refrigerators to side-by-side and bottom freezer refrigerators, LG has a wide range of options to choose from to find the right solution for you. The Signature series fridge has a door-in-door design, but takes it one step further by adding a Knock-On feature. Once opened, a conventional refrigerator can take 1-2 hours to regain maximum cooling level, affecting food stored inside. In fact, when you knock twice on the door, the tinted glass panel lets view and select items —without opening the door. That is exactly what LG’s InstaView™ Door-in-Door® refrigerators at Best Buy allow you to do. Look through the door.