"For those people, seniors and/or disabled, for whom a conventional remote is just inaccessible (too small, buttons too close together, too many buttons), I wanted to make all types of current TV/media within their reach (literally! ;-)
Streaming TV's are the trend currently (4/19), with RokuTV, FireTV, and smartTV. Then there are the USB-plugin devices, Chromecast, Apple TV, Fire Stick, and Roku Stick, all vying for the top spot. These TV's/plugins connect directly with your wifi router/modem (the box supplied by your internet provider).
'SmartTV's' are not specific to a company/brand's streaming, because they don't require a separate USB device for that service (for example, they can access Netflix and a host of other streaming channels).
The difference between a specific streaming TV/plugin and a SmartTV is the number of apps (i.e. channels) it offers, but that is becoming moot as they all try to cover *all* channels (ESPN is actually an "app" but can be called a "channel"). Personally, a SmartTV offers all I need, but some like the specific brand's streaming capabilities.
I try to cover all, as the need arises. Dee Dee purchases a Fire TV for her son, Creed, so I was able to create a Bluetooth controller for their TV. If someone has a need for a Roku TV, I will create that controller. And so on. (no, that's not Creed below ;-)