The number of video formats supported by the 49PUT4900 is more than most 4K and 8K TVs that were released around the same time as it. This television supports an AVI video formats supported, which is the most commonly supported video formats supported supported by TVs of this type and age. The video formats supporteds "H.264" and "MKV" are also supported by this TV.
WMV stands for Windows Media Video.
AVI stands for Audio Video Interleave.