WLTV-DT

The analog UHF channel 23 allotment in the Miami–Fort Lauderdale market was first occupied by Fort Lauderdale-based WFTL-TV, which signed on the air on May 5, 1953[2] and was affiliated with NBC[3] and later had a secondary affiliation with the DuMont Network. It was originally owned by Tri-County Broadcasting Company, the owner of WFTL-AM, but later sold to Storer Broadcasting, which bought the WFTL studio and transmitter facilities and the construction permit for WMIE-TV, on channel 27, in Miami (which never signed on under that call sign) in December 1954.[4][5] Concurrent with WFTL's purchase, Storer changed the call letters to WGBS-TV (which stood for the initials of company founder and president George B. Storer). However, the station never thrived. For one thing, television set manufacturers were not required to include UHF tuning capability at the time (UHF tuning capability was not made mandatory for TV sets until 1964). Most viewers needed to buy an expensive UHF converter to watch WGBS, and even then the picture quality was marginal at best. It didn't help matters that much of the area—particularly Fort Lauderdale—got a strong signal from WJNO-TV (channel 5, now WPTV) in West Palm Beach.

The original channel 23's death knell sounded in 1956. In rapid succession, DuMont ceased operations, and NBC took its affiliation to the newly launched WCKT-TV (channel 7, now WSVN). This left WGBS as an independent, with a brief affiliation with the NTA Film Network from 1956. However, the burden of finding an additional 16 hours per day of programming was too much even for Storer's resources, and the station shut down on April 13, 1957[6] (the WGBS-TV calls were later used on an independent station broadcasting on UHF channel 57 in Philadelphia; that station is now owned by CBS Television Stations and operates as The CW's East Coast flagship WPSG; the call letters currently reside at a low-powered station in Hampton, Virginia; the three stations are unrelated).

The channel 23 license remained active for many years after the station originally known as WFTL-TV ceased operations, largely because the Federal Communications Commission (FCC) was reluctant at the time to delete the licenses of silent stations. During this period, the channel 23 frequency was used intermittently for FCC-sponsored tests.

The current incarnation of channel 23 first signed on the air on November 14, 1967 as WAJA, operating as an independent station. By that time, Storer sold the station to Al Lapin, Jr., who made the first great contribution to Latin-American television in Miami. Under Lapin, programs produced by the station included Bozo the Clown, an afternoon show that was broadcast live in English on weekdays and pre-recorded in Spanish on Saturday mornings, featuring Bozo, and his Latin helper "Petunia" (played by Ileana Garcia). It also included very popular Spanish language programs during this time, such as Solo Para Bailadores, a Spanish equivalent to Soul Train that featured live performances by local bands and was hosted by Omar Marchant; many local residents came to the show to dance and appear on television. WAJA originally operated from studio facilities located on Northwest 2nd Avenue (US 441) and 199th Street in Miami Gardens.

In January 1971, Lapin sold the station to Spanish International Communications Corporation (forerunner of today's Univision Communications) for KMEX-DT. The station's call letters were subsequently changed to WLTV' as the station concentrated more on Spanish-language programming, particularly those sourced from the Spanish International Network (SIN, later to be renamed Univision in 1988). By the mid-1970s, the station had phased out its remaining English-language programming. The WLTV call letters were previously used by WXIA-TV in Atlanta from 1951 to 1953, then by WBKO-TV in Bowling Green, Kentucky from 1962 to 1971.

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.

The station's digital signal is multiplexed:

WLTV ended programming on its analog signal, on UHF channel 23, on June 12, 2009, the official date in which full-power television stations in the United States transitioned from analog to digital broadcasts under federal mandate. The station's digital signal relocated from its pre-transition UHF channel 24 to channel 23 for post-transition operations.[8] All Univision-owned full-power television stations, including WLTV, officially added the "-DT" suffix to their call signs on June 23, 2009, eleven days after the completion of digital television transition.

• Barbara Bermudo (now anchor for Univision's Primer Impacto)
• Pamela Silva Conde (now anchor for Univision's Primer Impacto)
• Myrka Dellanos - anchor/reporter