The 65PFK5909 has a greater number of video formats than most televisions of a similar type and age to it. 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.