I had this problem on one of my Philips remotes. There is a holdover capacitor on the circuit board that keeps the memory intact while you change batteries. On mine there was apparently some bum information in the logic circuitry, probably glitched by a static pop to the remote. You will have to re-program your TV back into the remote after this.

There are two ways to fix it. You can remove the batteries, open the remote, find the capacitor (if you're familiar with electronics this won't be a problem, there is only one good sized capacitor on the circuit board). You can short out the two leads on the capacitor and it should reset and allow you to use the sat portion.

The second method is to take out the batteries and leave it for about a week. I'm not 100% sure this will work, but the first method worked on miine. Good luck!