Over the years, Billboard Magazine often featured Pittsburgh Radio Ratings

(Billboard Magazine - April 11, 1964 page 14)
Radio
Response
Ratings
Pittsburgh
2nd Cycle
Top Stations
   Pop Singles
     1. KDKA  46%
     2. KQV    39%
     3. WEEP 15%
Top Disk Jockeys
   Pop Singles
     1. Clark Race          KDKA 42%
     2. Chuck Brinkman  KQV   33%
     3. Dave Scott          KQV   14%
Top Stations
   Popular LPs
     1. KDKA     48%
     2. WWSW  20%
     3. WJAS     15%
     4. KQV       13%
Top Disk Jockeys
   Pop LPs
     1. Art Pallan          KDKA  21%
     2. Bob Tracey        KDKA  19%
     3. Rege Cordic       KDKA  16%
     4. Clark Race         KDKA  12%
     5. Chuck Brinkman KQV    11%

(Billboard Magazine - January 9, 1965 page 27)
Radio
Response
Ratings
Pittsburgh
2nd Cycle
Top Stations
   Pop Singles
     1. KQV    51%
     2. KDKA  43%
     3. WEEP   6%
Top Disk Jockeys
   Pop Singles
     1. Clark Race          KDKA 45%
     2. Chuck Brinkman  KQV   33%
     3. Dave Scott          KQV   10%
Music Dir., Program Dir., or Librarian
  (most cooperative in exposing new records)
1. John Rook,. KQV (tie) .......Operations Mgr.
2. Bill Roberts, KDKA (tie) .....Librarian
3. Dave Scott,  KQV ..............Music Director
Top Jockeys (Pop Singles) By Time Slot
     Morning             1. Hal Murray,     KQV   (close
                              2. Rege Cordic,   KDKA (race)
     Mid-Morning       Steve Rizen,       KQV
     Early Afternoon   Steve Rizen,       KQV
     Traffic Man         Clark Race          KDKA 
     Early Evening     Chuck Brinkman, KQV
     Late Evening      Chuck Brinkman, KQV
     All Night            Dex Allen,           KQV (tie)
                             Kurt Russell         KDKA (tie)

(Billboard Magazine - February 25, 1967 page 32)
Radio
Response
Ratings
Pittsburgh, Pa....4th Cycle
Top Stations
   Pop Singles
     1. KDKA 49%
     2. KQV   48%
         Others  3%
         (WMCK)
Top Disk Jockeys
   Pop Singles
     1. Clark Race          KDKA 45%
     2. Chuck Brinkman  KQV   33%
     3. Dave Scott          KQV   11%
Music Dir., Program Dir., or Librarian
  (most cooperative in exposing new records)
Gil Hagg .....  Music Director, KDKA
John Rook ... Program & Operations Director, KQV 
Top Jockeys (Pop Singles) By Time Slot
     Morning             Steve Rizen       KQV
     Mid-Morning       Bob Tracey        KDKA
     Early Afternoon   Hal Murray        KQV
     Traffic Man         Clark Race         KDKA 
     Early Evening     Clark Race         KDKA
     Late Evening      Chuck Brinkman  KQV
     All Night            Terry McGovern   KDKA