The H24E4453 has a greater number of video formats than most TVs that have been around for around the same time as it. This television supports an AVI video format, which is the most frequently supported video format supported by TVs of a similar age and spec to the H24E4453. The video formats "MP4", "MPG" and "TS" are also supported by this TCL-Digital television.
MP4 stands for Moving Pictures Expert Group 4.
AVI stands for Audio Video Interleave.