World Harvest Television, a.k.a. LeSEA Broadcasting purchased the station and took over in June 1976. The call letters were changed to the current WHFT-TV (standing for World Harvest Florida Television). LeSEA added their own religious programming, along with televangelist programming like The 700 Club. In addition, the station aired a general entertainment format for families during the 7-9 a.m. and 2-7 p.m. timeslots on weekdays and Saturdays from 9 a.m. to 6 p.m. (Sundays were reserved for religion). However, the station's conservative programming policy kept it from making much headway against the market's dominant independent, WCIX (channel 6, now CBS O&O WFOR-TV on channel 4).
In 1980, Trinity Broadcasting gave LeSEA a high offer for that time, so the station was sold. In the summer of 1980, all the secular shows were dropped (some eventually moved to WDZL or WBFS, while others never reappeared on Miami television stations) and the station switched to TBN programming. The WHFT-TV callsign, however, remained on the station.
Some of the religious shows that had aired on WHFT-TV during the LeSEA era remained on the station because TBN was also airing these programs, but shows like The 700 Club were removed (however, TBN would begin running The 700 Club a few years later).