content: <HTML>
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  <TITLE>Form 8K 9/9/04</TITLE>
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  <CENTER><FONT SIZE=4><B>UNITED STATES <BR>SECURITIES AND EXCHANGE COMMISSION</B></FONT> <br>
  <FONT SIZE=3><B>WASHINGTON, D.C. 20549</B></FONT></CENTER>
  
  <H1 ALIGN=CENTER><FONT SIZE=4>FORM 8-K</FONT></H1>
  
  
  <CENTER><B>CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)<BR>
   OF THE SECURITIES EXCHANGE ACT OF 1934</B></CENTER>
  <br>
  <br>
  <CENTER><B>DATE OF REPORT:&nbsp;  September 10, 2004</b></center>
  
  <br><center><b>Commission file number 1-8572</B></CENTER>
  <BR>
  <CENTER><FONT SIZE=4><B>TRIBUNE COMPANY</B></FONT> <br><FONT SIZE=3>(Exact
  name of registrant as specified in its charter)</FONT></CENTER>
  <BR>
  
  <table CELLSPACING="0" BORDER="0" CELLPADDING="0" WIDTH="100%">
    <tr>
      <td WIDTH="60%" VALIGN="TOP"><p ALIGN="CENTER"><B>Delaware</B><BR>(State or other
      jurisdiction of<BR>incorporation or organization)<P></td>
      <td WIDTH="40%" VALIGN="TOP"><p ALIGN="CENTER"><B>36-1880355</B><BR>
      (I.R.S. Employer<BR>
      Identification No.)<BR></td></tr>
  <TR VALIGN="BOTTOM">
       <TD ALIGN="LEFT"></TD><TD ALIGN="LEFT"><FONT SIZE="-1">&nbsp;</FONT></TD></TR>
    <tr>
      <td WIDTH="60%" VALIGN="TOP"><p ALIGN="CENTER"><B>435 North Michigan Avenue<BR>
      Chicago, Illinois</B><BR>
      (Address of principal executive offices)<BR></td>
      <td WIDTH="40%" VALIGN="TOP"><p ALIGN="CENTER"><B>60611</B><BR>
      (Zip code)</td>
    </tr>
  </table>
  <BR>
  
  <CENTER>Registrant's telephone number, including area code:&nbsp;&nbsp;(312) 222-9100</CENTER>
  <br>
  
  
  
  <P>Check the appropriate box below if
  the Form 8-K filing is intended to simultaneously satisfy the obligation of the registrant
  under any of the following provisions: </P>
  
  <P>[ ] Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>
  
  <p>[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>
  
  <p>[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p>
  
  <p>[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) </P>
  
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  <A NAME=A007></A>
  <H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=3>ITEM 8.01. OTHER EVENTS. </FONT></H1>
  
  <P>On September 10, 2004, Tribune Company
  (the &#147;Company&#148;) issued a press release updating previously reported circulation
  figures for <I>Newsday</I> and <I>Hoy,</I> New York for the twelve-month period ended
  September 30, 2003 and the six-month period ended March 31, 2004. The Company also
  increased its estimate of the total pretax cost to settle advertiser claims relating to reduced
  circulation at <I>Newsday</I> and <I>Hoy, </I>New York from $35 million to $80-95 million. </P>
  
  <P>A copy of the press release, which
  includes further details about these matters, is attached as Exhibit 99 and is
  incorporated herein by reference.</p>
  
  <p><B>ITEM 9.01(c) EXHIBITS.</B> </P>
  
  <p>Exhibit 99&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Press Release of Tribune Company dated September 10, 2004</p>
  
  <BR>
  
  <!-- MARKER FORMAT-SHEET="Head Major Center Bold" FSL="Default" -->
  <A NAME=A008></A>
  <H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=4>SIGNATURE </FONT></H1>
  
  <P>Pursuant to the requirements of the
  Securities Exchange Act of 1934, the registrant has duly caused this report to be signed
  on its behalf by the undersigned hereunto duly authorized. </P>
  
  <BR>
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      <td WIDTH="40%" VALIGN="TOP"><p ALIGN="CENTER">&nbsp;<P></td>
      <td WIDTH="60%" VALIGN="TOP"><p ALIGN="LEFT">&nbsp;  </TD></tr>
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      <td WIDTH="40%" VALIGN="TOP"><p ALIGN="CENTER">&nbsp;<P></td>
      <td WIDTH="60%" VALIGN="TOP"><p ALIGN="LEFT">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;TRIBUNE COMPANY<BR>&nbsp;&nbsp;&nbsp;&nbsp;
          (Registrant)<BR>&nbsp;<br>&nbsp;<br>&nbsp;</TD></tr>
    <tr>
      <td WIDTH="50%" VALIGN="TOP"><p ALIGN="left">Date:&nbsp;&nbsp;September 10, 2004</td>
      <td WIDTH="50%" VALIGN="TOP"><p ALIGN="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>/s/&nbsp;&nbsp;R. Mark Mallory</u><br>&nbsp;&nbsp;&nbsp;
          &nbsp;&nbsp;R. Mark Mallory<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Vice President and Controller</td>
    </tr>
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "form8k904.htm", "description": "FORM 8K DATED SEPTEMBER 10, 2004", "secsgml_size_bytes": 4445}]
metadata_filer: {"company-data": {"conformed-name": "TRIBUNE CO", "cik": "0000726513", "assigned-sic": "2711", "irs-number": "361880355", "state-of-incorporation": "DE", "fiscal-year-end": "1227"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-08572", "film-number": "041025419"}, "business-address": {"street1": "435 N MICHIGAN AVE", "street2": "STE 600", "city": "CHICAGO", "state": "IL", "zip": "60611", "phone": "3122229100"}}
text: Form 8K 9/9/04
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, D.C. 20549
  FORM 8-K
  CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d)
  OF THE SECURITIES EXCHANGE ACT OF 1934
  DATE OF REPORT:   September 10, 2004
  Commission file number 1-8572
  TRIBUNE COMPANY
  (Exact
  name of registrant as specified in its charter)
  Delaware
  (State or other
      jurisdiction of
  incorporation or organization)
  36-1880355
  (I.R.S. Employer
  Identification No.)
  435 North Michigan Avenue
  Chicago, Illinois
  (Address of principal executive offices)
  60611
  (Zip code)
  Registrant's telephone number, including area code:  (312) 222-9100
  Check the appropriate box below if
  the Form 8-K filing is intended to simultaneously satisfy the obligation of the registrant
  under any of the following provisions:
  [ ] Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  ITEM 8.01. OTHER EVENTS.
  On September 10, 2004, Tribune Company
  (the "Company") issued a press release updating previously reported circulation
  figures for
  Newsday
  and
  Hoy,
  New York for the twelve-month period ended
  September 30, 2003 and the six-month period ended March 31, 2004. The Company also
  increased its estimate of the total pretax cost to settle advertiser claims relating to reduced
  circulation at
  Newsday
  and
  Hoy,
  New York from $35 million to $80-95 million.
  A copy of the press release, which
  includes further details about these matters, is attached as Exhibit 99 and is
  incorporated herein by reference.
  ITEM 9.01(c) EXHIBITS.
  Exhibit 99         Press Release of Tribune Company dated September 10, 2004
  SIGNATURE
  Pursuant to the requirements of the
  Securities Exchange Act of 1934, the registrant has duly caused this report to be signed
  on its behalf by the undersigned hereunto duly authorized.
  TRIBUNE COMPANY
  (Registrant)
  Date:  September 10, 2004
  /s/  R. Mark Mallory
  R. Mark Mallory
  Vice President and Controller