For a portable TV otherwise known as iPad a touchscreen is about the same as a dial on the side.
Funny, that. I rarely use my ipad for video. Sometimes I stream videos to my AppleTV using my ipad, but most of what I do on my ipad is web consumption--just the standard mix of text and graphics, mind you not web video. aside from that, there's kindle, and reading pdfs.
But of course, I may well be an outlier.
A large screen ipad might be good for drawing, provided that the stylus can be accurate enough-- drawing on my ipad feels like I'm in kindergarten, fingerpainting. Then again, I'm not the artistic type.