Nvidia Shield with Harmony Remote/New User Questions

Hi All,
I'm trying to get Channels working in my household and I had a couple of questions. The Channels server running in a docker container on my unRAID box. I am using an Nvidia Shield as my frontend with the 3.0.3 version of the Channels frontend app. I am using a Harmony Hub with a Smart Control.

  1. I tried setting up the Harmony Activity with the information from the support articles and forum posts. I have created a Harmony Activity with the nvidia shield and a Windows PC to try and get the Red, Green, Yellow, and Blue buttons to work in Channels but I have not been successful in getting it to work. The Harmony Activity is created, I map the color keys to F1, F2, F3, and F4, but when I press them, Channels doesn't switch for me.
  2. Is there a way to launch Channels on Android so that it always goes to the "TV Shows" menu? It seems to remember the last screen it was on, but my family spends most of it's time in "TV Shows" and I haven't seen an option to change this.