The number of video formats supported by the Panasonic TX-40CSW524 is more than most TVs of this spec and age. This TV supports an AVI video formats supported, which is the most commonly supported video formats supported supported by mid-size TVs that were released around the same time as the TX-40CSW524. The video formats supporteds "3GPP", "FLV", "M4V", "MKV", "MP4", "TS", "VOB", "VRO" and "WMV" are also supported by this television.
MP4 stands for Moving Pictures Expert Group 4.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.