TV not being recognized anymore

Update 9/19/16. I fixed it. In case this is happening with anyone else, there's a few steps to take, but it works.

For some reason the Kinect's power seems to be tied with my TV. My TV was not recognized so I got a command to plug in IR cables because there was no Kinect. the next step allowed me to send "mute" commands to my TV. After 4 or 5 different tries, it still
didn't mute, so I was allowed to input my model # manually. Once that was accepted the lights on the Kinect kit up and commands to the TV all work fine

If none of the solutions you find here: https://support.xbox.com/en-ZA/xbox-one/console/tv-or-monitor-screen-is-blank-while-connected
resolved the problem, your console may need to be serviced. Go to
Device Support to submit a repair request:

1. After you've signed in with your Microsoft account, select Problem with a device.
   
2. Under For which device? select your Xbox One console or register it.
   
3. Select Display Issue and select Next.
4. On the next page, explain the issue in the Describe your problem field.
   
5. Beside Based on the problem described, we need to create a service order to replace your device, click
   Next.
6. Follow the steps to complete your service order.

I remember recognizing one of the soldiers in the flashbacks being a guy from an old soap opera my mum used to watch.

Also there was a guy from one of the arson missions (Was named Matthew Ryan in the game) who I instantly recognized.

I don't watch much TV anymore so didn't notice many famous faces.

Thanks for your reply! I did try that out, it does recognize other usb/external hard drives, so I'm thinking the problem is more with this particular hard drive that suddenly isn't being recognized anymore.

I found that HDMI 2 is the port that allows the xbox to actually see 4K as an output. Its funny because, if I enable UHD on the tv the xbox doesnt recognize 4k anymore