Panasonic introduced a 150 inch HDTV with 4K resolution way back in 2008. The largest LCD TV of that time was introduced at 2008 Consumer Electronics Show (CES).
On September 22, 2008, Panasonic’s 150-inch VIERA Plasma — the world’s largest HDTV — was exhibited at Panasonic’s Secaucus warehouse. Employees were invited for the first time to experience the revolutionary prototype.
This gigantic flat screen TV stands 11-feet wide and 6-feet tall. This 1080p big screen HDTV features 4096 x 2160 resolution, and it’s supposedly energy efficient, at least as energy efficient as a plasma TV of this size can be.