Before changing to jazz as WZUM, 1550's programming was provided by a format developed by veteran Pittsburgh radio programmer Clarke Ingram.

The initial permit was for the station to operate at 910 kHz at a power output of 1,000 watts, daytime only, from a transmitter site to be determined in Swissvale.

Before becoming famous, actor George Peppard was a DJ at WLOA and frequently talked about working at the station, including once while delivering the weather, accidentally forecasting "flow snurries" instead of snow flurries.

By this time, Del King had left as manager of the station to pursue ownership opportunities, but was retained as chief engineer for WCXJ.

WCXJ was sold in May 2000 to Urban Radio of Pennsylvania, a subsidiary of Inner City Broadcasting, which acquired both this station and sister WHAT in Philadelphia in a $1.5 million transaction.

AM Guys LLC purchased the station for $14,515 from a SEC receiver appointed to operate it and other assets of the Business Talk Radio Network.

AM Guys, headed by Edward DeHart and Stephen Zalenko, had leased the studio and its equipment to Business Talk Radio, and performed sales duties for the company on a contract basis.

On July 4, 2013, the station relaunched with an urban oldies format developed by veteran Pittsburgh radio programmer Clarke Ingram.