extending the deadline would have placed a huge, government mandated burden on local TV affiliates to continue to operate both an HD transmitter and an analog transmitter.
this date has existed for years and years. and being without TV isn't exactly a violation of anyone's constitutional rights. AND it seems to me that 6 million people buying new TVs would be good for the economy.
now, why the hell the central government was involved in my TV signal in the first place is probably a good question.