The expiration pissed me off too. The store didn’t have the model I wanted and I had to buy a model that is crap, because the credit expired. Now they got in what I want but I don’t have a card or $60 for it. The cards should have been good until a couple months after the switch over in 2009.
I don’t know how the coupons work, but is everyone eligible for them? Could I ask for some even though I don’t need them, and go out and get converter boxes? If so, do you know someone who could do that and then give them to you?