Apple TV App Mini-Guide and Recent Channels

Hi I found out today you released an Apple TV Xfinity Stream app and was thrilled to install it immediately. 

I’ve been waiting a long time for this for HomePod audio and to get down to one remote. THANK YOU.

But… I’m really having trouble using. I can’t find the mini-guide or recent channels without stopping playback, which on Roku I could access with the down button.

Please tell me these functions are hiding in here somewhere! They’re both pretty crucial to enjoying the tv experience.

Could use help figuring out. Thanks!