Florida is another Southeastern state without its own statewide PBS network; there are four individual PBS stations that are owned by the state colleges/universities, but operate independently of each other--WFSU Tallahassee (Florida State), WGCU Fort Myers/Naples (Florida Gulf Coast), WUCF Orlando (Central Florida), WSRE Pensacola/Mobile (Pensacola State College), and WUFT Gainesville (Florida). The rest are either community-owned (WJCT Jacksonville, WEDU/WEDQ Tampa/Saint Petersburg, South Florida PBS [WPBT Miami/WXEL West Palm Beach]) or owned by a local school district (WLRN Miami, owned by Miami-Dade County Schools). At least in some of the these markets, you do have a secondary (or sometimes a third) option for PBS programming.
Louisiana also has a statewide network, although the New Orleans DMA is served primarily by WYES; Louisiana Public Broadcasting does co-own WLAE-TV, but it operates as an educational independent and carries some programming from LPB. However, it did operate as NOLA's secondary PBS station from 1984 to 2013.