Watch a Preview for 30 Rock's Sixth Season

Although 30 Rock’s sixth season won’t make its debut until Jan. 12, you can see a preview of the first episode over at NBC’s website. The preview is called “Someone’s Got a Secret” and features Tina Fey’s Liz Lemon hiding a big secret from her TGS crew, which apparently only Kelsey Grammer knows about.

It was announced that 30 Rock would return to NBC’s mid-season lineup, which will also include Parks and Recreation, The Office and Up All Night on Thursday nights. You can check out the preview below and 30 Rock’s website here.

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