There are 5 million 'Zero TV' households in the US

"Some people have had it with TV. They've had enough of the 100-plus channel universe. They don't like timing their lives around network show schedules. They're tired of $100-plus monthly bills.
A growing number of them have stopped paying for cable and satellite TV service, and don't even use an antenna to get free signals over the air. These people are watching shows and movies on the Internet, sometimes via cellphone connections. Last month, the Nielsen Co. started labeling people in this group "Zero TV" households, because they fall outside the traditional definition of a TV home. There are 5 million of these residences in the U.S., up from 2 million in 2007."

Source:  Associated Press, 7th April 2013