The Philips 55PFS5709 has a greater number of video formats than most comparable spec TVs that were released more than two years ago. This TV supports an AVI video formats supported, which is the most commonly supported video formats supported supported by TVs of this type and age. The video formats supporteds "AVC", "H.264", "MKV", "MPEG1", "MPEG2", "MPEG4", "VC-1" and "WMV9" are also supported by this television.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.