I was re-watching Dr. Horrible’s Sing-Along Blog today when I suddenly realized that I had never reviewed it. Conceived and filmed during the 2007-2008 Writer’s strike by Joss Whedon, his two brother’s (Zach and Jed) and Jed’s wife Maurissa Tancharoen, the show came out during the summer of 2008 to rave reviews and a fresh eye towards online video. Possibly (I vaguely remember Whedon discussing it when it came out) influenced by Felicia Day’s first season of The Guild, the Whedon family wanted to do something online that would have higher production values. Bringing in Neil Patrick Harris and several people that Joss Whedon had previously worked with (including Felicia Day and Nathan Fillion) and created a funny, musical superhero love story. So, what exactly is Dr. Horrible’s Sing-Along Blog?