The following TEDxBratislava talk by Moshe Szyf compares the viewpoints offered by genetic versus epigenetics, and how the environmental plasticity offered through epigenetics can be studied.
The following TEDxPortland talk by Kent Thornburg examines the significance of trans-generational effects on our biology, specifically epigenetics, and the implications that has for our health.
The following TEDxOU Talk by Courtney Griffins explains epigenetic changes within the context of the nature vs. nurture argument, and makes use of twin studies to describe the potential effects of epigenetics. 18 minutes.
The following animated short by MinuteEarth gives a brief overview of how epigenetic changes can be acquired and how those changes can have affect an organism's biology. 3 minutes.