Rhodes had been at the News Corp. channel since its 1996 launch and was responsible for day-to-day news coverage.
In October, former NBC News head Andy Lack came to Bloomberg to oversee the TV, interactive and radio group. That followed ex-Time Inc. editor in chief Norman Pearlstine joining as chief content officer.
Lack said Rhodes' "news judgment, his strength as a creator and organizer and his ability to energize a television news operation will be strong assets ... as we build on the unique global infrastructure that Bloomberg has created."
Bloomberg said Rhodes' hiring completes a reorganization that Lack launched for the TV network, where three regional managers report to him. In addition to Rhodes, the other two are: Michael Clancy in Asia and Brian Martinez, in the UK, Europe, Middle East and Africa.