In north TX, pretty much all the BGSes say 'DFW Airport' and not the full spelled-out version (there were a few instances, I think mostly on WB I-635, using the initial 'D/FW Airport' labeling, but I believe most of those have since been replaced). I have yet to see a BGS for Love Field (not that there are that many) that uses its DAL code instead of the full name. Elsewhere, the BGSes for the airport in Amarillo have had no code (AMA) that I've ever seen, just the full name -- whether it was the previous name or the current one with the late Rick Husband's name before it.