The Philips 55HFL5010 has a greater number of video formats than most TVs of this age and type. The most commonly supported video format is AVI, but this video format is not supported by this TV. The video formats AVC|AVI|MPEG1|MPEG2|MPEG4|VC-1|WMV9 are also supported by this Philips TV.
AVI stands for Audio Video Interleave.
WMV stands for Windows Media Video.