The series initially launched on YouTube on July 3, 2007, before moving to Walker's own site, That Guy with the Glasses, and finally to the online production company Channel Awesome.Walker briefly retired the series on August 14, 2012, to work on other projects, even writing the character out of existence in the Channel Awesome film To Boldly Flee.The series has also featured guest stars Dante Basco, Don Bluth, Kyle Hebert, JonTron, Maurice LaMarche, Rob Paulsen, Gilbert Gottfried, James Rolfe, Tom Ruegger, Michael Salvatori, Greg Sestero, Sherri Stoner, Chris Stuckmann, Cree Summer, Rob Scallon, Corey Taylor and Mara Wilson as themselves; co-reviewing, acting in sketch segments, or making a cameo appearance)[7] The series was initially launched on YouTube on July 3, 2007, with a review of Transformers, but episodes were frequently removed by the website following complaints of copyright infringement.On January 22, 2013, Walker released a sketch short film titled The Review Must Go On, announcing the return of Nostalgia Critic with a sixth season and the end of Demo Reel.The reviews are interspersed with recurring memes, false or satirical dubbing of dialogue, comedic sketches and pop culture gagsāsuch as making fun of famous actors who starred in lesser-known roles before their rise to fame.Since the revival of the series in 2013, Walker occasionally produces an editorial which discusses relevant film topics; while still featuring the Critic persona, these videos are much less comedic and contain no sketches or other actors.