The Philips 55PFK6540/12 has a greater number of video formats than most televisions of this type and age. This TV supports an AVI video formats supported, which is the most commonly supported video formats supported supported by TVs of a comparable age and type to the 55PFK6540/12. 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.