Breaking Bad, 30 Rock, Modern Family and Boardwalk Empire lead the pack with the most nominations -- though fan favorites like "Friday Night Lights," "Lost" and "The Good Wife" are each represented as well.
Recent years have seen WGAs go to "Mad Men," "30 Rock" and "House."
Here's a partial list of this year's contenders:
Dramatic Series
"Boardwalk Empire"
"Breaking Bad"
"Dexter"
"Friday Night Lights"
"Mad Men"
Comedy Series
"30 Rock"
"Glee"
"Modern Family"
"Nurse Jackie"
"The Office"
New Series
"Boardwalk Empire"
"Justified"
"Men of a Certain Age"
"Treme"
"The Walking Dead"
Episodic Drama
"Boom" ("The Good Wife")
"The Chrysanthemum and the Sword" ("Mad Men")
"The End" ("Lost")
"Help Me" ("House")
"I.F.T." ("Breaking Bad")
"I See You" ("Breaking Bad")
Episodic Comedy
"Anna Howard Shaw Day" ("30 Rock")
"Earthquake" ("Modern Family")
"Nightmayor" ("The Sarah Silverman Program")
"Starry Night" ("Modern Family")
"When It Rains, It Pours" ("30 Rock")
"Wuphf.com" ("The Office")
Long Form, Original
"The Special Relationship"
"You Don't Know Jack"
Long Form, Adaptation
"The Pacific," "Part Four,"
"The Pacific," "Part Eight,"
"The Pillars of the Earth"
"Temple Grandin"
Animation
"Lrrreconcilable Ndndifferences" ("Futurama")
"Moe Letter Blues" ("The Simpsons")
"O Brother, Where Bart Thou?" ("The Simpsons")
"The Prisoner of Brenda" ("Futurama")
"Treasure Hunt" ("Back at the Barnyard")
Comedy/Variety, Series
"Penn & Teller: Bullshit!"
"Saturday Night Live"
"The Colbert Report"
"The Daily Show with Jon Stewart"
Comedy/Variety, Specials
"The Simpsons 20th Anniversary Special - In 3-D On Ice!"
"Jimmy Kimmel Live: After the Academy Awards"
Daytime Serials
"As the World Turns"
"General Hospital"
"One Life to Live"
The WGA has the complete list, including categories for news, promos and children's programming.