The number of video formats supported by the 50PFT6550 is more than most televisions of this spec and age. The most commonly supported video format is AVI, but this video format is not supported by this television. The video formats AVC|AVI|H.264|MKV|MPEG1|MPEG2|MPEG4|VC-1|WMV9 are also supported by this Philips television.
AVI stands for Audio Video Interleave.
WMV stands for Windows Media Video.