Hello again ninamercury ~ Thank you for getting back to me!
I'm basing my answer on the Fire TV Edition TV - please let me know if I did not understand that correctly!
You can browse the channel guide and view available information at the same time you are watching - your current show will move to the lower right of the screen. Press and hold the Home button and choose Channel Guide.
As far as PlutoTV - I do not have it myself to check - but hopefully another community member will have more insight.
Yes, that's correct. The issue I'm having is I can read the description of what I'm watching, but I cannot read the full description & there is no option to read more of the description without having to exit the program. I'll insert a pic. Is there a way to read more about a program I'm watching?