Without giving them any further instructions, ask all your non-technical friends and family members to (1) watch a popular movie on Netflix/iTunes/Amazon/Google

Without giving them any further instructions, ask all your non-technical friends and family members to (1) watch a popular movie on Netflix/iTunes/Amazon/Google Play and (2) torrent the same movie. Report back on how many are able to successfully do 1 vs 2. That'll tell you how good the respective user experiences are.