Talk radio listening is enjoyed not only on radios, but a wide variety of other devices and services including PCs using iTunes, station directories such as TuneIn, show directory smartphones with apps such as Stitcher and time-shifting services like DAR.fm.  Talk radio is not limited to the AM band. "Non-commercial", usually referred to as "public radio", which is mainly located in a reserved spectrum of the FM band, also broadcasts talk programs. Commercial all-talk stations can also be found on the FM band in many cities across the US. These shows often rely less on political discussion and analysis than their AM counterparts, and often employ the use of pranks and "bits" for entertainment purposes. In the United States and Canada, satellite radio services offer uncensored "free-wheeling" original programming. ABC News & Talk is an example of "repackaging" for the digital airwaves shows featured on their terrestrial radio stations. Expressing and debating political opinions has been a staple of radio since the medium's infancy. Aimee Semple McPherson began her radio broadcasts in the early 1920s and even purchased her own station, KFSG which went on the air in February 1924; by the mid-1930s, controversial radio priest Father Charles Coughlin's radio broadcasts were reaching millions per week. There was also a national current events forum called America's Town Meeting of the Air which broadcast once a week starting in 1935. It featured panel discussions from some of the biggest newsmakers and was among the first shows to allow audience participation: members of the studio audience could question the guests or even heckle them. Talk radio as a listener-participation format has existed since the 1930s. John J. Anthony (1902-70) was an announcer and DJ on New York's WMRJ. It was located in the Merrick Radio Store at 12 New York Boulevard in Jamaica, Long Island. After some marital troubles, refusing to pay alimony and child support, he sought professional help and began his own radio series where listeners would call in with their problems in 1930. Radio historians consider this the first instance of talk radio. While working for New York's WMCA in 1945, Barry Gray was bored with playing music and put a telephone receiver up to his microphone to talk with bandleader Woody Herman. This was soon followed by listener call-ins and Gray is often billed as "the hot mama of talk radio". Herb Jepko was another pioneer. Author Bill Cherry proposed George Roy Clough as the first to invite listeners to argue politics on a call-in radio show at KLUF, his station in Galveston, Texas, as a way to bring his own political views into listeners' homes.