History Mystery Clue #7 – July 10

“Harry Magee’s radio station first went on the air January 18, 1948.  Originally its call letters were WLTR.  Harry wanted to use his initials HLM, but another radio station already had those call letters.  After several years of negotiating and waiting, Harry got what he wanted, and in September of 1951, Harry’s station got Harry’s initials.  What building first housed WLTR/WHLM studios?”