The Rocky Horror Glee Show the performances by Morris, Monteith, Agron and particularly Colfer, who, she wrote, "looked and sounded the part so well, you'd swear you were watching the original "Rocky Horror Picture Show"". In a generally negative review of the episode, Reiter commented that despite her dissatisfaction, she found herself singing along to "Time Warp" with "disconcerting enthusiasm", and was "nostalgically transported against [her] better judgment". In contrast, VanDerWerff stated that he would have increased his review of the episode from an "F" to a "D" had "Time Warp" been better, as he had "never seen a more lifeless version". Zoller Seitz similarly
The Rocky Horror Glee Show and the second scripted show behind only "Modern Family". In overall viewers, it placed twentieth for the week. In Canada, the episode was watched by 2.48 million viewers, ranking as the fourth most-watched program for the week of broadcast. Viewership was again up on "Duets", which attained 2.25 million viewers and ranked seventh. The episode's Australian broadcast drew 1.34 million viewers, making "Glee" the fifth most-watched show of the night and the most-watched with viewers aged under 50. It placed eleventh in the weekly program rankings. There also, "The Rocky Horror Glee Show" registered a rise on the previous episode,