The number of video formats supported by the KDL-42W800 is more than most televisions that are a similar age to it. The most commonly supported video format is VP8, but this video format is not supported by this Sony TV. The video formats AVI, M-JPEG, MKV, MOV, MP4, MPEG1, MPEG2, WEBM, WMV and XVID 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.