Samsung is the company that first started to blur the line between smartphone and tablet, so it makes sense that it also be the first to blur the line between tablet and… portable television? An inventory image that was recently leaked suggests that the company is currently working on a 18.4-inch tablet, much larger than Samsung’s current largest tablet, the 12.2-inch Galaxy Tab Pro. In fact, I think once you pass the 18-inch mark it stops being a tablet entirely.