From Broadcasting Yearbook 1980:
2 - WBBM Chicago, IL (CBS)
3 - WCIA Champaign, IL (CBS)
4 - WCIU 26 Chicago, IL (IND)
5 - WMAQ Chicago, IL (NBC)
6 - WSNS 44 Chicago, IL (IND)
7 - WLS Chicago, IL (ABC)
8 - WFLD 32 Chicago, IL (IND)
9 - WGN Chicago, IL (IND)
10 - WLFI 18 Lafayette, IN (CBS)
11 - WTTW Chicago, IL (PBS)
12 - WICD 15 Champaign, IL (NBC)
13 - WTHR Indianapolis, IN (NBC)
2 - WBBM Chicago, IL (CBS)
3 - WCIA Champaign, IL (CBS)
4 - WCIU 26 Chicago, IL (IND)
5 - WMAQ Chicago, IL (NBC)
6 - WSNS 44 Chicago, IL (IND)
7 - WLS Chicago, IL (ABC)
8 - WFLD 32 Chicago, IL (IND)
9 - WGN Chicago, IL (IND)
10 - WLFI 18 Lafayette, IN (CBS)
11 - WTTW Chicago, IL (PBS)
12 - WICD 15 Champaign, IL (NBC)
13 - WTHR Indianapolis, IN (NBC)