The discount is built into the price of the package. for instance, Directv doesn't offer my locals.
My bill reads as follows:
11/09 12/08 CHOICE - no locals Monthly 49.99
11/09 12/08 HD Access Monthly 9.99
11/09 12/08 Network: ABC HDTV Monthly 1.99
11/09 12/08 DIRECTV DVR Service Monthly 5.99
11/09 12/08 DIRECTV on DEMAND -Complimentary 0.00
The cost of choice if Directv had my locals is actually 52.99, so I get a $3 discount.