The number of video formats supported by the LE49U5000 is more than most TVs of this age and spec. This Haier TV supports an AVI video format, which is the most frequently supported video format supported by TVs of a similar spec and age to the LE49U5000. The video formats "H.265", "MKV" and "MP4" are also supported by this TV.
MP4 stands for Moving Pictures Expert Group 4.
AVI stands for Audio Video Interleave.