NGTV Guide: Thursday, April 12

Community – NBC 8/7c
“Origins of Vampire Mythology” – When Britta’s old flame “Blade” (Kirk Fox, “Parks and Recreation”) returns to town with the traveling carnival, she confesses to the group that she needs their help to stay away from him. While Annie, Troy and Abed scheme to keep her occupied and away from Blade, Jeff and Shirley head to the carnival to get a look at the mystery man. Meanwhile, Dean Laybourne enlists the help of Dean Pelton to convince Troy to join the Air Conditioning Repair Annex.

30 Rock – NBC 8:30/7:30c
“Meet the Woggels!” – Jack’s mom upstages his ribbon-cutting ceremony; Jenna hooks up with a “rock star”; Tracy frets about his son heading to college.

Up All Night – NBC 9:30/8:30c
“The Proposals” – When Reagan loses her engagement ring, a Brinkley family heirloom, Chris uses the opportunity to give Reagan the proposal he was never able to give. In order to cover up losing the ring, Regan must seek out her worst enemy – Chris’ grandmother (guest star Marion Ross). Meanwhile, Kevin (guest star Jason Lee) returns and tries to win Ava back with the help of Julian (guest star Chris Diamantopoulos).