Each Wednesday, Slate ’s Culture Gabfest closes with one endorsement from each gabber. This week, Slate ’s movie critic, Dana Stevens, recommended the work of comedian Paul F. Tompkins , whose one-hour special, “You Should Have Told Me , ” recently debuted on Comedy Central. He’s also playing live shows nationwide on his grass-roots ” Tompkins 300 ” tour. Deputy editor Julia Turner picked Jackie DeShannon’s song ” Splendor in the Grass ,” with vocal backing from the Byrds. She heard it on an episode of Fresh Air , and like Terry Gross, wonders why the song wasn’t a hit when it debuted in the ‘60s. DoubleX editor Ha n na Rosin raved about t he memoirs of Diana Athill , a renowned British book editor in her 90s who writes movingly about editing, aging, and her singular version of a liberated life. Culture critic Stephen Metcalf recently discovered Oakland indie-rock outfit Rogue Wave and recommended their first album , Out of the Shadow . And Gabfest producer Jesse Baker wants you to watch a new SlateV feature, video endorsements from June Thomas and Dana Stevens. T his week , they discuss the “Theatricality” episode of Glee on FOX .