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VIDEO: GLAAD's What To Watch on Thursday

(This post was originally published at GLAAD Blog.)

Tonight watch as Mark steps in as temporary chief on "Grey's Anatomy" and Nellie is officially welcomed to "The Office."

9 pm: Grey's Anatomy on ABC (1 hr) NEW

Cristina presses Owen for all the details of his affair; Bailey, Callie and Arizona plan a girls night for Teddy; Mark acts as chief for the day; and Callie deems Meredith ready to take her board exams. Watch a sneak peek below.

9 pm: The Office on NBC (30 mins) NEW

Robert decides that Nellie should have an office welcome party, but the planners try to sabotage it. Andy and Erin continue to practice ways for Andy to break up with Jessica.

This morning and afternoon, check your local listings for information about Ellen, The Nate Berkus Show, The Talk (CBS) and The Chew (ABC). Days of Our Lives on NBC (check local listings for time) features gay character Will as a series regular; keep an eye out for developments between Will and recurring gay characters Sonny and Neil.

About What to Watch on TV

Grab the remote or set your DVR! GLAAD brings you the most up-to-date listing of LGBT content on television every weekday.

This post was originally published at GLAAD Blog. For more information about Gay & Lesbian Alliance Against Defamation (GLAAD), please see GLAAD's website, or visit GLAAD Facebook and Twitter.