This VIZIO 47' LED-Backlit LCD Theater 3D Full HD Smart TV (M3D470KDE) drops from $798 to $618 with free shipping from Dell. This is the lowest price we could find for this TV by $41. It features a 3D, 1080p display with a 120Hz refresh rate, built-in WiFi with Vizio internet apps, automatic ambient light adjustment, surround sound and comes with a QWERTY keyboard equipped smart remote. It's also received an average rating of 4.3 out of 5 from Amazon reviewers and a 4.1 out of 5 from Walmart reviewers. Sales tax is charged in most states.