WEDNESDAY, DECEMBER 30

--"GLEE"�(8:00-9:00 PM ET/PT) CC-HDTV 720p-Dolby Digital 5.1

MORE THAN THE RECOMMENDED DAILY ALLOWANCE ON "GLEE" WEDNESDAY, DECEMBER 30, ON FOX

Will challenges the kids to a healthy dose of competition with boys against girls in a mashup showdown. Meanwhile, Terri takes a job as the school nurse, despite having no medical experience, to keep an eye on Will in the "Vitamin D" episode of GLEE airing Wednesday, Dec. 30 (8:00-9:00 PM ET/PT) on FOX. (GLE-106) (TV-14 D, L)

Cast: Matthew Morrison as Will Schuester; Jessalyn Gilsig as Terri Schuester; Jane Lynch as Sue Sylvester; Lea Michele as Rachel Berry; Cory Monteith as Finn Hudson; Jayma Mays as Emma Pillsbury; Dianna Agron as Quinn; Chris Colfer as Kurt; Kevin McHale as Artie; Amber Riley as Mercedes; Mark Salling as Puck; Jenna Ushkowitz as Tina

Guest Cast: Stephen Tobolowsky as Sandy Ryerson; Iqbal Theba as Principal Figgins; Patrick Gallagher as Ken Tanaka; Naya Rivera as Santana Lopez; Kent Avenido as Howard Bamboo; Joe Hursley as Joe; Bill A. Jones as Rob Remington; Earlene Davis as Andre Carmichael; Heather Morris as Brittany; Dijon Talton as Matt Rutherford; Harry Shum as Mike Chang