The number of video formats supported by the 50PFK4009 is more than most TVs of this age and type. This Philips television supports an AVI video format, which is the most frequently supported video format supported by TVs that have been around for around the same time as the 50PFK4009. The video formats "AVC", "H.264", "MKV", "MPEG1", "MPEG2", "MPEG4", "VC-1" and "WMV9" are also supported by this TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.