Airs Saturday, April 16, at 12 noon. The 2015-16 Metropolitan Opera Radio Broadcast season continues with a live broadcast of Donizetti’s Roberto Devereux. Soprano Sondra Radvanovsky stars as Queen Elizabeth I of England, completing her season-long quest to sing the leading roles in all three of Donizetti’s Tudor Queen tragedies. Earlier this season, Radvanovsky gave acclaimed performances as Anne Boleyn in Anna Bolena and Mary, Queen of Scots, in Maria Stuarda. With Roberto Devereux, she becomes the first singer to perform all three roles in a single New York season since Beverly Sills did so in the 1970s. The broadcast also stars tenor Matthew Polenzani in the title role of the Earl of Essex, the Queen’s favorite; mezzo-soprano Elīna Garanča as Sara, the woman he secretly loves; and baritone Mariusz Kwiecien as Sara’s husband and Devereux’s best friend, the Duke of Nottingham. Bel canto specialist Maurizio Benini conducts the performance. Roberto Devereux will be heard live over the Toll Brothers-Metropolitan Opera International Radio Network at 12:00 p.m. CT on Saturday, April 16.