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By 1962 Todelar had 24 stations (11 owned-and-operated, 13 affiliates).
In 1967 Unión Radio, a group of radio stations of Cali (Radio Uno, Radio el Sol), Pereira (La Voz Amiga, La Voz de Pereira), and Bogotá (La Voz de Bogotá, Emisora Monserrate), joined the network.
After these years, Todelar has seen itself in disadvantage vis-à-vis rival networks RCN Radio and Caracol Radio; since Todelar is essentially a media company it has found difficult to compete in equal terms with those networks, owned by huge corporate conglomerates.
Caracol Radio (Cadena Radial Colombiana, "Colombian Radio Network") is one of the main radio networks in Colombia.
On 12 August 2010 at ( UTC), a car bomb exploded outside the headquarters of the network, which did not interrupt its broadcast, despite having its building's tiles and windows shattered.
RCN Radio (Radio Cadena Nacional, "National Radio Network") is one of the main radio networks in Colombia.
Founded in 1949 with the integration of Radio Pacífico (Cali), La Voz de Medellín' and Emisora Nueva Granada (Bogotá).
It also operates affiliate stations in Tame (Tame FM Stereo), Ocana, Mariquita (Ondas del Gualí), Puerto Lopez (Marandúa Stereo).
Founded in Medellín in 1948 when La Voz de Antioquia station acquired the 50% of Emisoras Nuevo Mundo, based in Bogotá.