The number of video formats supported by the 50PUH6400 is more than most similar spec televisions that have been on the market for a comparable time to it. The most commonly supported video format is AVI, but this video format is not supported by this Philips TV. The video formats AVC|AVI|H.264|MKV|MPEG1|MPEG2|MPEG4|VC-1|WMV9 are also supported by this TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.