The number of video formats supported by the 48PFK5500/12 is more than most TVs that came out around the same time as it. This TV supports an AVI video formats supported, which is the most frequently supported video formats supported supported by TVs of this spec and age. The video formats supporteds "AVC", "H.264", "MKV" and "WMV9" are also supported by this Philips TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.