The Philips 55PFK7509 has a greater number of video formats than most televisions of this age and spec. This TV supports an AVI video format, which is the most commonly supported video format supported by large TVs that have been available for more than two years. The video formats "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.