The Sony KDL-55W828 has a greater number of video formats than most TVs that have been available for more than two years. The most frequently supported video format is VP8, but this video format is not supported by this TV. The video formats 3GPP, AVCHD, AVI, M-JPEG, MKV, MOV, MP4, MPEG1, MPEG2, WEBM, WMV and XVID are also supported by this Sony TV.
AVI stands for Audio Video Interleave.
MP4 stands for Moving Pictures Expert Group 4.
WMV stands for Windows Media Video.