Welcome to the community, @fordsarethebest!
Usually you need a driver for your computer to recognize the external hardware device
(in your case the WD Essentials), this means that it's not contained on the HDD itself. I believe that @Gillerer is right and you are most probably dealing with a TV that is unable to recognize an NTFS-formatted external. This is the default file system that a Windows OS computer uses and it's how your WD Essentials is most probably formatted. In order for us to determine this, I'd suggest you post a screenshot of your
Disk management in Windows. The file system of the drive should be displayed there.
You should also check your TV manual and see what kind of file system it uses. Most of...