This resource lists all SW BC stations and is updated very regularly, sometimes several times a day. If you download the zipped Excel spreadsheet and enter your offset from GMT (found in cell N2 of the both the COMBINED and ENGLISH tabs, default is East Coast US time, if you are in that time zone no need to adjust anything) it will tell you what is station on right now now (or at any specific time). It also includes a tab on the bottom to select only English Language broadcasts.