List of most impactful TV moments

<div class="meta image-caption"><div class="origin-logo origin-image none"><span>none</span></div><span class="caption-text">1. Sept. 11 terrorist attacks &#40;2001&#41;. The most impactful television events of the last 50 years, as measured in a survey conducted by Nielsen and Sony Electronics.</span></div>
July 11, 2012 1:22:55 PM PDT