Who uses the internal TV smarts?
The smarts in these TV's have always been under-powered and horrible compared to any external box you could attach. It always seems they put in the bare minimum just to add a bullet point to the sales brochure. TV's should be simple output devices with no smarts at all other than a TV tuner.
There are tons of options out there for adding great interfaces to your TV experience that a TV maker just can't compete with or even keep up with. In Sony's case, they should just provide a discount for their PS4 with a TV purchase instead of trying to duplicate the PS3/4 interface on low powered hardware in the TV.