I remember reading that the FCC granted a reprieve for some FrankenFMs. Not all. I think they had to apply for it. I know Chicago's MeTV FM was one of them. I didn't pay attention to the article closely since there's nothing like that in my market.Not sure why the Franken-FM is listed as WTBS-FM, since it's technically a TV station. When is the FCC going to get rid of analog LPTV and kill off the Franken-FMs?
Doing a quick search, here's an article about it. It's Alive! FCC Authorizes Last-Minute Franken FM Experiment - Radio Survivor
Bottom line, they are digital TV but the analog FM is still being temporarily used.