Complex sentence: DeFranco appeared in the first story of the show's first two weeks, excluding February 1 only to appear again on a March 12,2012 video about the Mass Effect 3 ending.
Split into simpler sentences: DeFranco appeared in the early episodes during the show's first two weeks, excluding February 1. DeFranco would appear again on a March 12,2012 video about the Mass Effect 3 ending.