Digital TV switch facing hurdle over...postage stamps?

We expected some potential issues concerning the analog TV shutoff next year, but even we (and apparently the Commerce Department) could not have predicted they'd run low on stamps necessary to send out $40 discount coupons for digital television converters. Apparently nearly 60% of the coupons sent out expired before they were actually used -- maybe people are waiting to see which digital converter to buy -- resulting in n unexpected number of new mailings. Funds from the unused coupons goes back to the program and will still be available for more requests, however the budgeted administrative funds to actually mail the things is limited, and may need to be expanded. According to Reuters, the NTIA should have a clearer picture after July 1, but this could cause some issues for those still waiting to request the discount.