Ok, since the dumb post creator deleted what i had the first time, here's an update.

1. We got the Menus from the firmware and the whole implementation is quite weird. They use .mpg for the menu and guide, and panel components.

2. We have the firmware images

3. The Viewer folder is a very Large folder as it houses the segments folder. The segments folder houses what i believe to be all the recordings for the DVR.

now, all this is hosted on a single 15GB partition on the drive. But yet that segments folder amounts to 695 GB,

4. We have the bong sound , yes. The directv "no" bong sound.
5. the swdl folder contains our firmware, in a .CSW file format. You can view the contents by utilizing winrar or 7 zip and using the Open Archive > "# "  flag in the context menu,
6. In that .csw file the opt and etc folders are full of fun and fascinating goodies, between weird file names, .sh files, .pcm files, and so much more. I wont spoil the fun for you, after all you chose to take the time to join me in this adventure.
 7 -  A side note, dont go publishing this stuff all around the interweb posting that you 'hacked' something when really all you did was mount the partition of a hard drive, in your home, that you use - indirectly.

8. I am not responsible for your actions, if you get yourself sued, well buddy, thats on you. Im only doing this because I wanted to know how these boxes work, and if i could turn them into something useful like say a pi Hole ad blocker, or a very janky home media server.  Forget using it for sattelite TV , use it for NAS instead!!
9. the drive uses a JFFS 2 File system , and it cant be easily mounted in my experience.

 10. i am writing this at 12:15 am before my body says "no more" and i pass out from needing sleep>

Just wanted to share this exciting update with you.

Ill leave some images here for PoC , and I wont spoil the fun of letting you hunt through your own DVR



*Disclaimer- I Cannot gurrantee every file will be exactly the same, due FW revision, OEM, drive size, etc. Every drive and box is unique, so some will be the same, some wont. Based on experience.

DTV, and DISH, Xfinity, If you're seeing this, Please do not take legal action against me, I am simply doing this as I cannot get a job no matter where I apply. This is the only thing keeping me sane with my Job hunt. Besides, I am quite certain you would appreciate free pentesting on your IoT devices you give to consumers.