Daniel D'Addario Chief TV CriticThe best talk show hosts are made into stars by the medium. To wit: Rosie O’Donnell was a well-known comic and actor but hardly the dynamo she eventually became when she began her daily show.
She reinvented the medium that had, before her, been dominated by former local news anchor Oprah Winfrey. Both these stars did not bring to bear huge amounts of persona that was already known to the audience, so they had to work to carry across an idea of themself with each episode and segment.
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