The TX-40CXW684 has a greater number of video formats than most televisions of a comparable type and age to it. This Panasonic TV supports an AVI video format, which is the most commonly supported video format supported by TVs of a similar age and spec to the TX-40CXW684. The video formats "3GPP", "FLV", "M4V", "MKV", "MP4", "TS", "VOB", "VRO" and "WMV" are also supported by this TV.
MP4 stands for Moving Pictures Expert Group 4.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.