Chicago radio legend Bob Sirott isn't hanging up his headphones any time soon. The latest: WGN Radio announced a "multi-year" ...

WGN Radio today announced a multi-year extension with morning show host Bob Sirott who is heard 6 am to 10 am weekdays.

Williams will still do occasional pieces for CBS News Chicago, but he will no longer be seen on the anchor desk every day ... that at the time housed WGN Radio as well as WGN-TV.