00 / 00 ©Entertainment Pictures/Alamy TV critic Les Brown discusses his book "Encyclopedia of Television" BROADCAST: Dec. 9, 1977 | DURATION: 00:53:58 Synopsis TV critic Les Brown discusses his book "Encyclopedia of Television." Details Broadcast Date Dec. 9, 1977 Physical Format 1 sound tape reel (ca. 53.51 min.) : 10 1/2 in. Duration 53 minutes, 58 seconds Digital Format WAV Ownership The Chicago History Museum Language English Tags Brown, Les, 1928- Television encyclopedia. Authors, American. African Americans Audiotapes. Radio programs. WFMT (Radio station : Chicago, Ill.) American Broadcasting Company (ABC) National Broadcasting Company (NBC) Television networks CBS United States. Federal Communications Commission Durr, Clifford J. (Clifford Judkins), 1899-1975 Blue Book Fairness doctrine (Broadcasting)