What Are the Folders Which Came On My TV1? Are They Necessary?

The Folders which came pre installed on Your TV1's internal Memory are indeed necessary. The Firmware requires these folders to see any files you have. The folders are:

DCIM and 100MEDIA- This folder is for picture and video files, Put your .ASF and .JPG files in the 100MEDIA folder

MP3- This folder is for music and recording files. Put your .MP3, .WMA, and .WAV files here

TXT- This folder is for text files. Put your .TXT files here