40s Junction is a commercial-free music channel on the Sirius XM Radio platform, broadcasting on Sirius XM channel 73 as well as Dish Network channel 6073. (DirecTV formerly carried the channel as well, on channel 801, but as of February 9, 2010 had dropped Sirius XM programming in favor of SonicTap). The channel mostly plays big band, swing, and hit parade music from 1936 to 1949, with occasional songs from the early 1950s. Until May 7, 2015, the station was known as '40s on 4, and programming was broadcast on channel 4 as part of the Decades lineup of stations. It was moved to channel 73 to be nearer to stations featuring similar genres of music such as jazz and standards. For the first four months on channel 73, the station was known simply as '40s, before being rebranded as 40s Junctio