The TX-L42B6 has a greater number of video formats than most similar spec televisions that have been available for around the same time as it. This television supports an MKV video format, which is the most commonly supported video format supported by televisions of this spec and age. The video formats "3GP", "AVI", "FLV", "M4V", "TS" and "WMV" are also supported by this Panasonic television.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.