The TX-55AX900 has a greater number of video formats than most 4K and 8K TVs that are a similar age to it. This television supports an AVI video format, which is the most frequently supported video format supported by TVs of this type and age. The video formats "3GPP", "AVCHD", "FLV", "H.264", "M4V", "MKV", "MP4", "TS", "VOB" and "WMV" are also supported by this Panasonic TV.
MP4 stands for Moving Pictures Expert Group 4.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.