WRSP's transmitter is located west of Mechanicsburg, in unincorporated Sangamon County; the station shares studios with WBUI and WICS on East Cook Street in Springfield's Eastside.

WCCU's transmitter is located northeast of Homer, along the Vermilion–Champaign county line; it shares studios with WICD on South Country Fair Drive in downtown Champaign.

It aired an analog signal on UHF channel 55 and was built by the Windmill Broadcasting Company, which had received the construction permit in September 1978.

The sale was approved on September 14 by the Federal Communications Commission (FCC), which allowed GOCOM to buy WBUI under a "failed station" waiver to its duopoly rules.

As a result, a nightly prime time newscast began airing on the Fox affiliates that was jointly produced by the two ABC outlets.

Known as NewsChannel at 9 on Fox Illinois, it aired from a modified set at WICS's Springfield studios featuring unique duratrans indicating the Fox-branded show.

The WRSP/WCCU newscast featured market wide coverage, including contributions from WICD reporters, but there was a separate weeknight weather segment for WRSP and WCCU.

In its place are newscasts simulcast from WICS (in all time slots) which provide market-wide coverage including content from the eastern areas through a downsized bureau at WICD's studios.

On April 7, 2015, despite this significant reduction, WICD began airing a full sixty-minute Champaign-based prime time newscast (weeknights at 9) on WCCU entitled Fox Champaign News at Nine.

The station's digital channel allocations post-transition are as follows:[10] On December 6, 2022, WRSP/WCCU began broadcasting an ATSC 3.0 NextGen TV signal for the Champaign–Springfield market.