Then known as W64CQ, Channel 22 was on the same tower as 92.7 / 103.1 / 106.7 / 107.1. It aired TBN Trinity Broadcasting Network. It was supposed to repeat Channel 35 WWTO-TV LaSalle, but I never saw any legal ID for W64CQ or WWTO-TV. Instead the network national feed from a Dish Network receiving dish was aired. I know this because sometimes the signal screwed up, and promos for Dish Network aired.
The signal currently is directional Southwest from Willis Tower, and does not reach it's city of license (Arlington Heights), or viewers located north and northwest. That new All News diginet really needs to find an affiliate in Chicago with a better signal.