The Toshiba 50L2436 has a greater number of video formats than most large TVs that are a similar age to it. The most commonly supported video format is AVI, but this video format is not supported by this television. The video formats 3GP|AVI|FLV|M2TS|M4V|MKV|MP4|MPEG|MPG|VOB|XVID are also supported by this TV.
AVI stands for Audio Video Interleave.
MP4 stands for Moving Pictures Expert Group 4.