The 55PFK6409 has a greater number of video formats than most TVs of this type and age. This television supports an AVI video format, which is the most commonly supported video format supported by TVs that have been on the market 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.