To those with the same question, I have an answer. Go to apps, find your channel or network, add to your list. Open the app, arrow up to open channel lineup, and find the channel you want to watch. Pain in the @#$ but that's how you get all your cox channels.
Just add a channel in the network if you can't find ythe one you want (nbc has golf net work, usa , local news, cnbc, etc). I'm not a tech savvy guy but did figure it out!!!!
I also get discover channel through discovery go. Play around with it and you will get it.
Anyway, was an Xmas gift from my wife who saw me complaining about watching TV on my small tablet. What a great present!!! And didn't have to pay to run a cable or extra cable box.
Just think of it as the app is a network and inside the app are all the channels they offer. I know, I dumbed it down. Sorry to the smart ones out there.