The number of video formats supported by the 50PFT6550 is more than most TVs of a similar age and type to it. This TV supports an AVI video formats supported, which is the most commonly supported video formats supported supported by large TVs that have been available for more than a year. 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.