WJJD first started airing talk in mid days, they put G. Gorden Liddy on from 10AM-2PM. This followed Clark Weber who did the 5:30AM-10AM.
They did this due to the fact that Rush was getting popular at WLS, they wanted to get some younger listeners.
I am not certain on the years here, WJJD stayed with this format for a couple of years. They remained nostalgia music from 2PM-5:30AM.
They finally decided to go all talk after former Alderman Ed Vrodo(not going to try and spell the name

quit his highly rated WLS afternoon show when WLS dropped the simulcast and went with a younger talk format, which lasted about a year, and was back to the simulcast due to low ratings.
WJJD, at the time was only 5kW at night and didn't cover much of the area after sundown.
Ed Vrodo and Ty Wansly took over afternoon drive, Tom Leykus from 6PM-10 PM, cant recall the overnight people at the moment. All music was dropped at that point and the station was branded "Chicago's Hottest Talk"
Bob Hale and Bob Dearborn and the others were taken off the air, yet remained with the station for a few months running the boards.
The decision was made to put fast Ed and Ty Wansley, his co host from WLS in morning drive.
The reason given was that they had a better chance to be heard in the morning while people were in their cars.
They went to 50kW at sunrise, which in the winter is as late as 7:15. They never reclaimed their former ratings from WLS.
At that time Clark Weber was out. They brought in the syndicated Don and Mike for Afternoon drive.
The station never got above a 1.2 share overall and the format was dropped.
They went back to nostalgia music with the exception of leaving Liddy on 9A-1P and Leykis from 9P-1A.
The talk of the Score moving to 1160 from 820 was already being talked about.
Eventually Howard Stern became the morning guy on WJJD when he was taken off WCKG FM, by Cox.
Howard didn't stay long on WJJD, CBS(Infinity) bought WCKG and put Stern back there mornings.
WJJD finally was a simulcast of Oldies 104.3 for a bit until The Score moved there and WJJD was gone.
If my timeline is off, please correct it, I'm doing this from memory.
I miss the "music of the stars" format of WJJD. There will never be anything else like it.
Now the signal at night is 50kW at night also, from six towers southwest of Chicago. It is a Salem teaching religious station now that rarely gets above a 0.1 share.
They are mostly brokered though, so ratings don't matter much.
Just a shame in my view that the signal is so much better now and virtually nobody listens ;(