1. I get stations 22, 16, 57 ectra
How do I hook up an antenna to get 22.1, 16.1 57.1

2. Next, Where do I find available Apps. How do install the APPS?

.Samsung 40 class, Led 2160, smart 4k ultra
Model UN40KU6300FXZA
Thank you

This question, "Local tv stations and Apps," is about DirecTV channels, programming, equipment, and sports.