EXHIBIT 21 TRIBUNE COMPANY SUBSIDIARIES Jurisdiction of Other names under which Incorporation subsidiary does business --------------- ------------------------ PUBLISHING - - ---------- Tribune Publishing Company Delaware Chicago Tribune Company Illinois Chicago Tribune; Exito! Chicago Tribune Newspapers, Inc. Illinois Tribune Newspaper Network Chicago Tribune Press Service, Inc. Illinois Newspaper Readers Agency, Inc. Illinois Tribune Direct Marketing, Inc. Delaware Chicago Tribune Direct Precision Home Delivery, Inc. Delaware RELCON, Inc. Delaware Tribune Media Services, Inc. Delaware TV Log; TV Week; TV Listings; TMS Stocks; Voice News Network Sun-Sentinel Company Delaware Sun-Sentinel; Gold Coast Labeling Gold Coast Publications, Inc. Delaware Gold Coast Shopper; Porch Plus; XS; Exito!; iCE; Vital Signs; South Florida Parenting New River Center Maintenance Association, Inc. Florida Sentinel Communications Company Delaware The Orlando Sentinel; US Express; Magic Magazine; Tribune Interactive Network Services; Downtown Orlando Magazine; Florida Journal Publications; Black Family Today; Central Florida Family; Tampa Bay Family; Jacksonville Family Neocomm, Inc. Delaware Porch Plus; Relcon of Florida; Neocomm of Delaware, Inc. Jurisdiction of Other names under which Incorporation subsidiary does business --------------- ------------------------ The Daily Press, Inc. Delaware Daily Press Hampton Roads Newspapers, Inc. Virginia Tribune National Marketing Company Delaware Picture Network International, Ltd. Delaware EDUCATION - - --------- Tribune Education Company (Tribune New Media Company) Delaware NTC/Contemporary Publishing Company Illinois Best Publications Company; Best Books Company; National Textbook Company; Passport Books; VGM Career Horizons; The Quilt Digest Press; NTC Business Books Congdon & Weed, Inc. New York Wright Group Publishing, Inc. Delaware Compton's Multimedia Publishing Group, Inc. Delaware NewMedia Source, Inc. California Compton's NewMedia U.K. Limited United Kingdom Jamestown Publishers, Inc. Rhode Island Everyday Learning Corporation Illinois NTC/Contemporary Publishing Company Delaware Educational Publishing Corporation Delaware Creative Publication Ideal School Supply Corporation Delaware Instructional Fair Inc. Delaware Instructional Fair.TS Denison Jurisdiction of Other names under which Incorporation subsidiary does business --------------- ------------------------ BROADCASTING AND ENTERTAINMENT - - ------------------------------ Tribune Broadcasting Company Delaware Tribune Plus; Tribune Plus Corporate Sales; Tribune Creative Services Group Tribune Broadcasting News Network, Inc. Delaware Trib Net ChicagoLand Television News, Inc. Delaware ChicagoLand Television/CLTV Oak Brook Productions, Inc. Delaware ChicagoLand Microwave Licensee, Inc. Delaware Tribune Regional Programming, Inc. Delaware Tribune New York Radio, Inc. Delaware WQCD-FM Tribune Denver Radio, Inc. Delaware KOSI; KEZW Tribune Denver Direct Mail, Inc. Delaware KOSI Coupons WGN Continental Broadcasting Company Delaware WGN-TV; WGN Radio; Tribune Radio Networks Tribune Sacramento Radio, Inc. Delaware KKHK (pending FCC approval, previously known as KVOD) Tribune Entertainment Company Delaware Magic T Music Publishing Company Delaware Tribune Entertainment Production Company Delaware Chicago River Production Company Delaware 435 Production Company Delaware 5800 Sunset Productions Inc. Delaware North Michigan Production Company Delaware Fairfax Media, Incorporated Virginia Tribune (FN) Cable Ventures, Inc. Delaware KWGN Inc. Delaware KWGN-TV WGNO Inc. Delaware WGNO-TV WGNX Inc. Delaware WGNX-TV KTLA Inc. California KTLA-TV Jurisdiction of Other names under which Incorporation subsidiary does business --------------- ------------------------ WPHL-TV, Inc. Pennsylvania WPHL-TV WPIX Inc. New York WPIX-TV; Tribune New York Holdings WLVI Inc. Delaware WLVI-TV Tribune Network Holdings Company Delaware KTTY, Inc. Delaware KHTV, Inc. Delaware KHTV-TV Interstate Radio Network, Inc. Illinois Tribune California Properties, Inc. Delaware Farm Journal, Inc. Pennsylvania Farm Journal Tours, Inc. Pennsylvania Rockwood Research Corporation Pennsylvania Chicago National League Ball Club, Inc. Delaware Chicago Cubs Diana-Quentin, Inc. Illinois Rockford Professional Baseball Club, Inc. Florida Rockford Cubbies Rock River Concessions, Inc. Florida Orlando Baseball Club, Inc. Delaware Orlando Cubs Orlando Baseball Concessions, Inc. Delaware MISCELLANEOUS - - ------------- Tribune Properties, Inc. Delaware New River Center Management Co. Tribune New York Properties, Inc. Delaware Riverwalk Center I Joint Venture Florida (Partnership)