The number of video formats supported by the Panasonic TX-42AS520 is more than most TVs of this age and type. This Panasonic television supports an MKV video formats supported, which is the most commonly supported video formats supported supported by mid-size TVs that have been on the market for a comparable time to the TX-42AS520. The video formats supporteds "3GP", "AVI", "FLV", "M4V", "MP4", "TS", "VOB" 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.