A couple notes.
This is within the first month or so of News Series 2000 Plus' two decade run on WLS, though the station's top-to-bottom refresh was almost a year-long process.
Early 1992: in-show graphics and lower thirds
Fall 1992: WPVI-style opens and new theme, plus the move to the temporary set
Jan/Feb 1993: New set and a few anchor changes
Looks familiar, but this is a temporary set. The late 80's model was reconstructed elsewhere, while the new one for 1993 was being built.
The easy was to tell is the wide branded panel behind the 2 anchors. The background on the hard set was narrower, so they could pull up the curtain to expose a green screen for reporter tosses.
Also, the entire run of that set, from 1987 to 1992, featured only circle 7's on the walls. The placement of ''Eyewitness News' was a preview of what would be on the new set, just in the old model's dark blue, and not the much lighter shade of the new.