Insignia 50″ 720p Plasma HDTV for $647.99. Order online to lock in the price and select in-store pickup to save on shipping. Here is a screenshot for your reference. This plasma HDTV features a 1365 x 768 (720p) resolution, HDTV tuner, inputs for HDMI, component, composite, and more. Note that Insignia is Best Buy’s private brand.