HUGE DVR increases DVR viewer increases: House most DVR’d; Fringe biggest % increase. TV by the Numbers. November 2, 2009 [November 2, 2009]. （原始内容存档于2009-11-04）
这是美国科幻电视剧《危机边缘》的剧集列表；共有五季，已完結。 Fringe - Warner's Official Press Release Reveals Street Date for Season 1 Blu-ray & DVD. TV Shows on DVD. May 28, 2009 [May
'Modern Family' Tops DVR Ratings Gain For The 2010-11 Season; 'Fringe' Has Biggest % Increase By DVR. TV by the Numbers. June 13, 2011 [June 20, 2011].
William Bell (1集) David Call 饰 Nick Lane (1集) De Leon, Kris. Fringe: Ari Graynor Joins the Cast, Plus Preview of "Safe". BuddyTV. 2008-12-02 [2011-06-25]