Glee, Glee | GLEE KING OUT The girls from Glee perform a mashup in the episode ''Vitamin D''
Credit: Carin Baer/FOX

Fox’s musical dramedy aired so recently that no rehash is required. Trust me, ”Don’t Stop Believin’ ” and ”Somebody to Love” still dazzle. This release is about the EXTRAS, which are just as effervescent. Featurettes crackle, revealing personal details about the stars (Cory Monteith’s first car was a 1972 Dodge Colt!) and their auditions (Lea Michele sang for execs minutes after a car wreck!). It’s all satisfying. That is, until you realize, sadly, that there’s no preview for April’s new batch of episodes. A?