The number of video formats supported by the 22PFK4000 is more than most small display diagonal TVs that came out around the same time as it. This TV supports an MPEG4 video formats supported, which is the most frequently supported video formats supported supported by TVs of a similar age and spec to the 22PFK4000. The video formats supporteds "AVI", "H.264", "MKV", "MPEG1", "MPEG2", "VC-1" and "WMV9" are also supported by this Philips TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.