The number of video formats supported by the 55PUH4900 is more than most comparable spec TVs that were released more than a year ago. This television supports an AVI video format, which is the most frequently supported video format supported by televisions of this spec and age. The video formats "AVC", "H.264", "MKV", "MPEG1", "MPEG2", "MPEG4", "VC-1" and "WMV9" are also supported by this TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.