How do I set up my 2nd and 3rd smart TV’s using the Gemini Air box I used for my main tv set up?

What issues are you having?

I actually figured it out by trial and error.  Thank you so much for responding!  

Well, I now can’t get my daughter’s tv in her room figured out.  I would so appreciate any help you could give.  Here’s where I am.  I bought an extra DirectTV remote because I thought it would be easier for her.  She has an LG tv and I can turn it on and go to settings.  I can even connect to the internet.  That’s where it ends.  I do understand if you think this is not something you want to mess with.  I do appreciate your time! 

Thank you so much for the info.