WD My Passport Wireless

Trying to find out how to watch movies from my hard drive on my 75" LG tv Wirelessly.

Well, you are not in the right forum, there is one for your wireless drive, so i hope you have the wireless version of the passport. My reply refers to the wireless version only.

You will need the complete user manual to connect your wireless signal of drive to your network router.

Once connected to same network as TV your TV should be able to see the drive in its directory. Find your drive and the movie files in it. Movie files need to be mp4 files and if you find them your TV can play them.