The 55PUK4900 has a greater number of video formats than most televisions of this age and type. This Philips television supports an AVI video format, which is the most commonly supported video format supported by TVs of a comparable age and spec to the 55PUK4900. 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.