My TODAY Plazaween themes: Rocket science, ‘Fresh Prince,’ more

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It’s My TODAY Plazaween on My TODAY Plaza this week, with groups in Halloween costumes vying for votes from our viewers. Thursday’s virtual visitors include families following such themes as rocket science (including an astronaut); the Mexican Dia de Muertos celebration; twins paired as George Washington and King George III, and “The Fresh Prince of Bel-Air.”