Adorama offers the LG 50" 600Hz 1080p WiFi Plasma Smart HD Television, model no. 50PB6650, for $499 with free shipping. That's tied with last week's mention as the lowest total price we could find by $100, and among the least expensive 50" Smart TVs we've seen. It features a native resolution of 1920x1080 (1080p), 600Hz sub-field drive, WiFi, LG Smart TV with Netflix, Hulu Plus, and Amazon Instant Video, and three HDMI inputs.