WordNet (r) 3.0 (2006):

scoreboard
    n 1: a large board for displaying the score of a contest (and
         some other information)

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "scoreboard":
   bulletin board, card, catalog card, disc, file, filing card, film,
   index card, library catalog, magnetic tape, microcard, microdot,
   microfiche, microfilm, motion-picture film, phonograph record,
   platter, scorecard, scoresheet, slip, tape, ticker tape,
   videotape