Understand the 3TB size is relatively new, so you cannot expect a simple smart tv to be able to do what PC can.
My 2tb connected to my TV (Samsung 5100AR) with no problems. I upgraded to a 3tb and the error message on the screen says "no device". A friend said I should "format the drive to 32x so the TV will read it as a USB". I'm a bit behind on my tech stuff so please tell me what's the problem. We landed on the moon 50 years ago and I can't hook a 3tb hard drive to my TV.