The number of video formats supported by the Philips 55PFK6510 is more than most large TVs that were released around the same time as it. This television supports an AVI video format, which is the most frequently supported video format supported by similar spec televisions that came out around the same time as the 55PFK6510. 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.