A:Answer You can loop a video from a USB Flash Drive using the app VLC for Fire.
The app VLC for Fire supports the following formats:
MKV, MP4, AVI, MOV, Ogg, FLAC, TS, M2TS, Wv and AAC
The VLC app features a repeat function.
* The TV supports one USB flash drive up to 128 GB formatted FAT32
David M. - Insignia Support