Dawson and Harmon are to join SAG Awards Committee Chair JoBeth Williams to read out the nominations Thursday at the SilverScreen Theater at the Pacific Design Center in West Hollywood, Calif.
The nominations announcement is to be telecast live on TNT and Web-cast live on TNT.tv and TBS.com.
The winners of the awards are to be announced at a Jan. 30, 2011, ceremony to be simulcast live on TNT and TBS from the Shrine Exposition Center in Los Angeles.
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