The number of video formats supported by the 55PFK6409 is more than most TVs of a similar age and spec to it. This TV supports an AVI video formats supported, which is the most commonly supported video formats supported supported by similar spec TVs that have been on the market for a comparable time to the 55PFK6409. The video formats supporteds "AVC", "H.264", "MKV", "MPEG1", "MPEG2", "MPEG4", "VC-1" and "WMV9" are also supported by this Philips television.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.