Since I have a Google certified androidTV stick in my bedroom, I used androidtv native liveTV application to view the channels. AndroidTV native liveTV allow you to watch network based live TV. I have Haystack TV installed and have 9 channels on top of Google Play Movie trailer channel.
TVheadend client can be downloaded by clicking the icon below:
Youtube video below shows how to set it up. Credit to the youtuber - not mine.
After following the steps, we can have all mapped tv channels from TVheadend running in native androidtv live TV app.