Jennifer Aniston will make a return visit to NBC, the TV network where she became a breakout star on "Friends."

She is currently filming a guest appearance on the network's comedy, "30 Rock," Aniston publicist Stephen Huvane confirms.

There were no immediate details on Aniston's role or the episode's air date. The series, which begins its third season in October, stars Tiny Fey and Alec Baldwin. Aniston's fellow "Friends" co-star, David Schwimmer, had a "30 Rock" guest shot last season.

Since "Friends" ended four years ago, Aniston has concentrated on films.