The 55PFS6609 has a greater number of video formats than most large TVs that came out around the same time as it. This television supports an AVI video format, which is the most frequently supported video format supported by televisions that were released more than two years ago. The video formats "AVC", "H.264", "MKV", "MPEG1", "MPEG4" and "WMV9" are also supported by this TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.