The number of video formats supported by the 50PFT4509 is more than most televisions of a comparable spec and age to it. This TV supports an AVI video formats supported, which is the most frequently supported video formats supported supported by similar spec TVs that have been around for more than two years. The video formats supporteds "AVC", "H.264", "MKV", "MPEG1", "MPEG2", "MPEG4", "VC-1" and "WMV9" are also supported by this Philips TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.