"The survey did not ask where the respondents obtained the content, ignoring the reality that many were possibly downloading television shows from Bittorrent or similar services."
To me, it sound like a good idea not to ask that, if you want honest responses.
This is off-topic, but the eventual replacement of televisions by computers+broadband annoys me for one simple reason: I purposefully threw away my TV years ago, and now I find the medium encroaching upon my life again. Oh, well.
http://news.bbc.co.uk/1/hi/business/6617013.stm
The TechCrunch headline exaggerates the statistic somewhat.