CHICAGO—The Chicago Sports Network, CHSN, will launch in October across multiple platforms with plans to deliver the Chicago Blackhawks, Bulls and White Sox games to the widest audience possible.

Fans will likely still need them to watch Chicago Sports Network, the new home of the Blackhawks, Bulls and White Sox, unless they subscribe to DirecTV, Astound/RCN or CHSN’s direct-to-consumer ...