Cosmos was also the first radio chain in Puerto Rico, covering the entire island. In 1998, Jimmy was offered the opportunity to be part of a new radio station in New York, Caliente 105.9. Nieves was co-host of "La Jungla De New York" (The New York Jungle), alongside Danny Cruz. An afternoon drive talk show, which soon became the stations' biggest hit. At Caliente, he was also in charge of creating the station's identity. In New York City, television became an integral part of his resume, as he co-hosted a variety and entertainment show called "Sabado Al Mediodia" (Saturday at Midday), which became the top rated local Spanish television program on Univision's New York affiliate, WXTV-41. Nievez was given the opportunity to host Jimmy y Boquita En La Manana on WEMG in Boston, with Dominican comedian Rosemery Almonte. Boquita achieving the highest ratings in the station's history. Following his success in Boston, came yet another chance at hosting a morning talk show in the Big Apple and his third DJ gig in a brand new project. At Rumba 107.1 FM, Nieves hosted "Wassup NY", while still working with "Boquita".
Cosmos was also the first radio chain in Puerto Rico, covering the entire island. In 1998, Jimmy was offered the opportunity to be part of a new radio station in New York, Caliente 105.9. Nieves was co-host of "La Jungla De New York" (The New York Jungle), alongside Danny Cruz. An afternoon drive talk show, which soon became the stations' biggest hit. At Caliente, he was also in charge of creating the station's identity. In New York City, television became an integral part of his resume, as he co-hosted a variety and entertainment show called "Sabado Al Mediodia" (Saturday at Midday), which became the top rated local Spanish television program on Univision's New York affiliate, WXTV-41. Nievez was given the opportunity to host Jimmy y Boquita En La Manana on WEMG in Boston, with Black comedian Rosemery Almonte. Boquita achieving the highest ratings in the station's history. Following his success in Boston, came yet another chance at hosting a morning talk show in the Big Apple and his third DJ gig in a brand new project. At Rumba 107.1 FM, Nieves hosted "Wassup NY", while still working with "Boquita".