At one point, DFW had a low powered TV station with the KSEX calls while airing (I think) informercials. I couldn't receive the station but I could imagine that it aired informercials for "toys" if you know what I mean (I'm sure not).
Today the calls are now KBOP. The KSEX calls are now in San Diego.
There was a WSEX 92.7 in Arlington Heights (NW Chicago suburb) back in the 1980s.