Will I have to program anything on the DTA box?

No, the DTA is already programmed for our system. However, you may wish to program your Universal Remote to the DTA or program the remote that comes with the DTA to your TV if you wish to use either remote for your channel/volume/tv functions. The DTA remote comes with instructions for programming to your TV. Your universal remote did as well, but let us know if you have questions or problems.