Hot off the yellow legal pad of David E. Kelley is a pilot script that has generated considerable buzz around town. Sources said the project is an hourlong dramedy in the "Ally McBeal" vein set behind the scenes at a network TV morning show. It's understood that the first place the David E. Kelley/20th Century Fox TV show was pitched was NBC -- which had its share of morning-show drama on "Today" this year -- but sources cautioned that the Kelley camp and the peacock are in the discussion stage and far from any formal deal. NBC and Kelley pacted last year on reality show "The Law Firm," but the Nielsen verdict on the first two episodes, which aired this month, spurred NBC to grant a change of venue (namely Bravo) for the remaining installments. Reps for Kelley and 20th declined comment Thursday.