According to a report by Rentrak (NASDAQ:RENT), the total time spent viewing free on-demand TV content increased by more than 40% in 2012 compared to the previous year. The total number of free on-demand TV programs watched went up 29% from the prior year.For free-on-demand programs that were aired over just broadcast networks, numbers grew more significantly, including a 60% increase in total time spent viewing and a 47% jump in the total number of programs watched since the previous year.Also in 2012, HD VOD viewing grew by more than 60%, and 43 million TV sets accessed VOD content each month, a 5% increase from the previous year and a 13% increase from 2010.