Here's a link to what the University of Florida IFAS extension recommends:

http://edis.ifas.ufl.edu/lh014

Living in TV, we should follow the fertilization guide for Central Florida. Under the "Maintenance Level" section Basic, Moderate and High are interpreted as what you as a homeowner desire, ie. if you want a super spiffy looking lawn follow the High maintenance level. Your lawn will still look good if you follow one of the other levels, just not as top notch.

Good luck and remember to read the labels of the fertilizers. They are NOT all created equal, even if the numbers are the same.