The H24E4453 has a greater number of video formats than most TVs that are a similar age to it. The most commonly supported video formats supported is MPEG4, but this video formats supported is not supported by this TV. The video formats supporteds AVI, MP4, MPG and TS are also supported by this television.
MP4 stands for Moving Pictures Expert Group 4.
AVI stands for Audio Video Interleave.