The number of video formats supported by the 40PFK5500 is more than most televisions of a comparable age and spec to it. This television supports an AVI video format, which is the most frequently supported video format supported by TVs of this type and age. The video formats "AVC", "H.264", "MKV", "MPEG4", "VC-1" and "WMV9" are also supported by this TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.