4K, pointless at this stage 3D, pointless since they were launched like 5 years back 65"... unless you've got a big room, the 480p/720p/1080p content you'll be playing on it will not be as sharp as it should be.
Would still bang, but not for that price For the difference in price, I'd be going for this... then upgrading in a few years to a good TV once 4K porn is actually available https://www.kogan.com/au/buy/kogan-50-led-tv-full-hd-za/