Well.. Anyways, can you tell me the following..
Is there some way I can check if I was able to get that ATV thing installed? How do I check on my phone?
Isn't there a place within the iPhone Settings or using some Tool that I can check for this having gotten installed? How do you verify? In your case what kind of "UI response" did you have when you downloaded this config via Safari?
Settings > General > Profiles & Device Management > Then there should be a profile called tvOS beta.... By Apple Inc.
And yes, there is a UI message when you first open the safari link, telling you if you want to install the certificate.