An update has been pushed out for the ToonAft app adding Android TV and Live Channels Support. This is an app that is essentially pure Toonami content, based on the website Toonami Aftermath, which streams cartoons continually. The small but straight to the point changelog is seen below.
TA Fans can now enjoy it on their TV.
And judging from the screenshots it seems like it is a one and done app so you can add its channels to Google’s Live Channels and just watch. There are two streams, a pacific and eastern stream based on the different timezones. There is also a radio station associated with the website that does not appear to be available through the Live Channels app.
You can download it via the Play Store here.