Cabletelevision Advertising Bureau

http://www.thecab.tv/main/research/2007ResearchSnapshots/in-a-time-shifted-world-85-of-viewing-is-still-liv.shtml

In A Time-Shifted World – 85% of Viewing Is Still Live

DVR penetration has continued to gradually increase to 20%. Over the years, households have become increasingly multi-DVR homes – practically with one set per TV. As majority of viewing still occurs Live, Broadcast programming accounts for majority of playback minutes.