I removed the Live Tv app and can't find it now....still trying to do that. But the other tv picked up the channels fine. Samsung has my city as being 100 miles away from me. I feel that is the issue. But yeah it had my channels listed in the guide once but then said there was no signal. I was watching them fine with the other tv...A lot of Samsung's menus grey out depending on what screen you are on...btw. So if you have the channel guide up, broadcasting will be greyed out. And they don't give you a manual...you only have the emanual which sucks. Edited to add before I rush off to work: I did this morning get Samsung to see the correct city. Sad you can only change that doing a reset.
Ok I did reset the tv and got the Live TV app back. I will be calling Samsung. I have figured out how to pause wireless to the tv to see if that will help but right now we are having bad storms and that is going to affect my tv reception.
It's possible that the Samsung TV is choosing to not automatically add a channel based on a weak signal strength from the antenna. This isn't a failing of the antenna insomuch as the Samsung setting a higher qualification for what constitutes a channel based on how well the signal is received.
If you can add the channel manually as a favorite, at least that would provide a manual means to complete your list.
You can only add a channel as a favorite if it is in the channel guide. However you are right that Samsung is allowing only the strongest signals...although on a sunny day the channels are perfect for me. So I am not happy that perfectly good channels are eliminated.