The 4 series, also known as the 450 series, comprise the value-priced line of Samsung's 2008 LCD televisions. They're the only units that Samsung is releasing in 2008 that feature a 720p native resolution, as opposed to the 1080p resolution of the other lines. Specification-wise the 4 series share a lot in common with the more expensive 5 series, housing the same number of HDMI inputs, supporting 3D display and picture-in-picture capabilities.
