NewsON is a nifty service that mirrors your local news networks over the internet (as of right now, NewsON supports ABC in my area, no cable needed. Your mileage my vary though). So far they have apps for mobile devices and Roku. I contacted them asking them whether they plan to support Android TV, and they said yes! The app already works when sideloaded no problem.

Links for the Play store and Roku https://play.google.com/store/apps/details?id=com.newson.vinson

https://channelstore.roku.com/details/71845/newson

Keep an eye out for this when it drops!