4TB External HD with TV

[◄Chuck►]

I had similar problems when trying to make use of a 3TB harddisk.
Unfortunately, 99.9999% of all web-based information on that matter is just misleading rubbish. Some say its possible, some say its not and some say possible under this and that circumstance. But bottom line is, I haven't found a single person who could actually achieve this.
So, I formatted with GPT and connected it to a Linux system which serves the files to any thing in my home (and even outside, via internet), not just the TV. That's was in the end the better choice.