Starting on Jan 8, 2019 you will be able to target and generate reports for a new device category via the AdWords API – connected TV.
The connected TV platform, (or “TV screens,” as it’s referred to in the new Google Ads experience), is a new Platform type similar to desktop, tablet, and mobile. It targets devices such as smart TVs, gaming consoles and standalone connected devices including Chromecast, Roku, and AppleTV.
Since connected TV shares the same functionality as the three existing platforms, you can target or exclude it using bid modifiers for Display/Video ad campaigns; the new criterion will have a
platformName of “ConnectedTv” and an ID of 30004. You can also isolate it in reports using a Device segment named
CONNECTED_TV. Note that even though bidding will only be supported for Display and Video ads, some residual traffic may appear in other kinds of reports so you should still pull the new segment for non Display/Video ad reports. – Read more