ATT Remote for new Sharp Roku TV - DirecTV

I just purchased a Sharp Roku TV (LC-50LB481U) and am having problems getting my S20-S1A ATT remote to properly function. I can get the power on/off and volume to function but can not get the arror navigation or the "ok" button to operate. The new Sharp's "Home" screen that the TV boots into requires the navigation keys and "ok" to select the TV viewing from the menu. I have tried the single digit and both five digit numbers from the ATT list, I also tried the Hisense codes since they make Sharp.

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