The Cubs are moving to their third different radio station in three seasons, as they will broadcast on WSCR AM 670 in 2016.
The Cubs had been on WGN Radio 720 AM for decades before switching over to WBBM AM 780 for the 2015 season.
CBS owns both 780 and 670, so it's just a matter of switching stations. The Cubs and CBS have a seven-year rights agreement.
670 The Score is only a sports station, whereas 780 is all news.
The White Sox were on 670 for the last 10 seasons, but are now moving to WLS AM 890 for 2016 and beyond.