Press and hold the Aux button until all the buttons light up, once they all light up let go and the AUX keeps on blinking, Press 2833 then the # Then press the big red power button on the top of the remote to see if the sound bar turns off. If it does, then press the big red power button to turn the sound bar back on.
Now, if you put the remote back into SAT mode by pressing the button one time you should be able to change the channels on the Dish. The problem here is going to be when you attempt to use the volume either up or down because when you do the TV button will light up. Essentially the remote is trying to use the TV to control the volume. To fix that you'll need to perform the Aux Volume Override.
Press and hold the AUX button until all the buttons light up, let go and AUX keeps blinking,
Press #, Volume Up, Number 0, #
Once that is done you can put the remote back into SAT mode by pressing the SAT button just once. Try using the channel up or down to make sure the rcvr changes channels, then use the volume up or down.