Nevermind, after a call to samsung where they told me it was impossible and searching the other answers, I managed to piece together what works. For anyone else, follow the steps above, but you have to hold down the center button to select the app before you press the down button (bottom of the center circle). Then you can chose to either disable or remove the app. I disabled it which deleted all the channels. Now in place of playing kitchen nightmares every time I turn on the tv, I get a screen that says "no signal". It's not pretty, but it's also not annoying.
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