I accessed my Tablo on a Galaxy Note 4 using the the web interface in Chrome browser but I see no way to play live TV. It only gives me the option to record any available episode including the episode currently airing live.
If you click on the channel number itself you should see live tv…
@roraniel - Check out this blog post. It should be helpful: https://www.tablotv.com/blog/tips-tricks-using-tablo-smartphone/