The Price Is Right, the longest-lasting daytime television game show, has had two hosts in Bob Barker and Drew Carey; three permanent announcers in Johnny Olsen, Rod Roddy, and Rich Fields; and countless models including, from the Bob Barker days, Janice Pennington, Holly Hallstrom, and Dian Parkinson.
(Note the full clue is "Janice Pennington, Holly Hallstrom, and Dian Parkinson". I'm fully certain even those of you with less than stellar research capabilities can come up with a more than stellar new clue if you know the history of the TPIR models. ;D )