The 55LF650 has a greater number of video formats than most large TVs that came out around the same time as it. The most commonly supported video format is AVI, but this video format is not supported by this LG television. The video formats 3GP|AVI|DIVX|DIVX HD|MOV|MP4 are also supported by this television.
AVI stands for Audio Video Interleave.
MP4 stands for Moving Pictures Expert Group 4.