Local on the 8's

I live in the Fort Walton Beach  - Mary Esther, FL area and our Weather Channel "Local on the 8's" is not local anymore. That is on channel 38. I have set up the new mini box in one of our rooms and cannot get channel 324  (Weather scan)  which does have local weather.  I can only receive channel 324 on a premium cable box. I need to be able to see local weather on all of my TV's.