I don’t know if “K-Love” is a national trademark yet but keeping the KLUV calls on one of the K-Love stations could solidify their brand and help to keep a potential “K-Love” or “K-Luv” station from signing on in a market where K-Love, Inc. doesn’t have a presence.
It is, though there are some areas where K-Love must get permission to use the name. North Texas, including Dallas/Ft. Worth, is no longer among them.