[16] On the morning of March 23, 1968, a trash pile near the building caught fire, evidently from children playing with matches;[17] the blaze spread through the air conditioning system to soundproof installation and destroyed all five of the station's cameras and other equipment, a loss of more than $500,000;[18] quick thinking by staff was cited for lessening the cost.

The station was on the air the next afternoon; the stock market show went on air that Monday using equipment leased from WCKT (channel 7); and Scantlin Electronics, supplier of the equipment used for the stock market program which was valued at $150,000, rerouted a demonstration unit intended for display at that year's National Association of Broadcasters convention to Miami.

Under the leadership of Cuban exiles José Alfredo López and Aramis del Real, Tele-Cuba presented Spanish-language programming from its own studios in Miami.

[24] While Tele-Cuba soon collapsed due to lack of financial support, WAJA-TV opted to take the road they had charted and follow it itself, airing some Spanish shows during daytime hours.

[29] In October 1970, Coastal filed to sell WAJA-TV to the Spanish International Communications Corporation (SICC), owner of three Spanish-language television stations in San Antonio (KWEX), Los Angeles (KMEX-TV), and the New York City area (WXTV), for $1,440,000.

[32] SIN became a satellite-interconnected network in 1976, and WLTV installed South Florida's first earth station to receive and broadcast satellite-delivered programming.

[33] Advertising revenue multiplied over a period of several years to $1.8 million in 1978; even though Miami was the eighth-largest market by population in SIN's stable, its comparatively affluent audience of middle-class Cubans made it the second-richest.

[34] In December 2009, WLTV, along with most other Univision-owned stations, upgraded their digital signals to 1080i high definition, in preparation for Univision and sister network TeleFutura's planned launch of HD programming in January 2010.

In addition, the station produces a 15-minute sports highlight program called Acción Deportiva Extra, that airs on Sundays at 11:15 p.m.; and a public affairs program called Ahora en Nuestra Comunidad, which airs Saturday mornings on WLTV (at 11 a.m.) and Sunday mornings on sister station WAMI-DT (at 6 a.m.).