The number of video formats supported by the 55PUK6400 is more than most large TVs that were released more than a year ago. The most frequently 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 TV.
AVI stands for Audio Video Interleave.
WMV stands for Windows Media Video.