By John Bugailiskis SAN JOSE, Calif. – While TVs continue to grow bigger, their sound is getting thinner claims streaming media device manufacturer Roku. Today, the company is launching its two-in-one Streambar that offers both 4K streaming and cinematic sound from one device for any TV with HDMI inputs. Roku claims the device will also be the first streaming platform to be compatible with Amazon Alexa, Apple AirPlay 2 and Apple HomeKit later this year. “Over the years TVs have gotten thinner, reducing space for built-in speakers, resulting in less impressive sound, while new streaming services have changed the way...