<PAGE>   1

                                                                    EXHIBIT 10.4

                           [TIMES MIRROR LETTERHEAD]



April 7, 2000


Horst A. Bergmann


Dear Horst:

                       EMPLOYMENT AND SEVERANCE AGREEMENT

The Times Mirror Company ("Times Mirror") has entered into an agreement dated as
of March 13, 2000 with Tribune Company ("Tribune") under which Times Mirror will
merge into Tribune (the "Merger Agreement") and on the date of the completion of
the merger ("Effective Date"), Times Mirror will cease to exist as a corporate
entity. If, as provided below, your employment continues beyond the Effective
Date, you will be employed by Tribune or the Times Mirror subsidiary or division
by which you are now employed that will then be owned by Tribune. This agreement
(the "Agreement"), which is effective as of the date hereof, will set forth (i)
the terms of your employment; (ii) the enhanced severance benefits that you will
receive if your employment is terminated under the terms of, and within the
Severance Protection Period as defined in, the Severance Attachment to this
Agreement; (iii) certain compensation and benefits as set forth in the Certain
Compensation and Benefits attachment; and (iv) certain employee benefits to
which you are entitled as set forth in the Certain Employee Benefits attachment.

However, it is important that Times Mirror and Tribune retain your services as a
key employee in accordance with the terms and conditions contained in this
Agreement to ensure the continuing and orderly conduct of business affairs.

1.      Continued Service.

        (a)     Subject to the provisions of paragraph 1 (d) of this Agreement,
                Times Mirror agrees to continue your employment and you agree to
                remain in your present position on the terms contained in this
                Agreement. If your active employment status is terminated prior
                to the Effective Date for any reason other than as set forth in
                paragraph 1 (d), you will remain as an inactive employee on a
                paid leave of absence until, and termination will become
                effective on, the Effective Date to enable you to receive the
                benefits set forth in this Agreement.

        (b)     This Agreement and all the obligations of Times Mirror to you
                hereunder will terminate if and at such time as Times Mirror
                informs you in writing that the



<PAGE>   2

Horst A. Bergmann
April 7, 2000
Page 2

                merger with Tribune will not take place. In the event of such
                termination, you will remain in the employ of Times Mirror, or
                its division or subsidiary, under those terms and conditions
                which presently apply to your employment.

        (c)     Upon the Effective Date, this Agreement and all the obligations
                of Times Mirror hereunder, shall be assigned to and assumed by
                Tribune.

        (d)     All rights and obligations of any party to this Agreement,
                including but not limited to, those set forth in any Attachment
                to this Agreement (except to the extent you are fully vested in
                or otherwise entitled to any employee benefit after the
                termination of your employment in accordance with the terms of
                the relevant benefit plan), will terminate immediately in the
                event (i) you voluntarily resign from your position prior to the
                Effective Date for any reason which is not within the terms of
                paragraph (b) of the Severance Attachment or (ii) you are
                terminated for cause. For the purpose of this Agreement, "cause"
                shall mean any material breach of your obligations to Times
                Mirror or Tribune, the commission by you of any criminal act
                (except for traffic or any other minor offences), or any act of
                dishonesty or abuse of office.

2.      Duties and Benefits.

        (a)     While you are employed under the terms of this Agreement during
                the Severance Protection Period:

                (i)     You  will continue to serve as a key employee and
                        continue to fully perform those functions, duties and
                        responsibilities which are assigned to you as of the
                        date of this Agreement or which may reasonably be
                        assigned to you in the future;

                (ii)    There shall be no change in your salary or bonus
                        opportunity and no change in the employee benefit
                        programs or perquisites in which you now participate
                        except to the extent that any such changes are permitted
                        under the provisions of Section 6.1 (p) of the Merger
                        Agreement, a copy of which section of said agreement is
                        attached to this Agreement, or are determined by Tribune
                        after the Effective Date. As of the Effective Date, the
                        terms of your employment with Tribune will be subject to
                        the provisions of Section 6.9 of the Merger Agreement, a
                        copy of which section of said agreement is attached to
                        this Agreement. However, your employment shall remain
                        subject to the terms set forth in the Severance
                        Attachment and in the event of any conflict between the
                        terms of Section 6.9 of the Merger Agreement and the
                        provisions of the Severance Attachment, the provisions
                        of the Severance Attachment shall at all times control.



<PAGE>   3

Horst A. Bergmann
April 7, 2000
Page 3


        (b)     After the Effective Date, you will be entitled to a bonus
                incentive award under the Executive Incentive Plan at the time
                and in accordance with the terms of the attachment to this
                Agreement entitled "Certain Compensation and Benefits".

3.      Enhanced Severance Benefits.

        (a)     You will be entitled to receive the enhanced severance benefits
                upon the satisfaction of certain conditions precedent as set
                forth in the Severance Attachment to this Agreement. In order
                for you to be eligible to receive these enhanced severance
                benefits, the following conditions must be satisfied: (i) the
                merger of Times Mirror into Tribune must be completed; and
                either (ii) your employment must be terminated by Times Mirror
                or Tribune prior to the end of the Severance Protection Period;
                or (iii) you terminate your employment after the Effective Date
                for the limited good reasons included within the terms of the
                provisions of the Severance Attachment. Upon the satisfaction of
                said conditions precedent, you will receive the enhanced
                severance benefits set forth in the Severance Attachment to this
                Agreement. However, (i) in the event that the merger of Times
                Mirror into Tribune is completed but your employment is not
                terminated in the manner set forth above within the Severance
                Protection Period as defined in the Severance Attachment, or
                (ii) your employment is terminated under the provisions of
                paragraph 1 (d), you will not receive the enhanced severance
                benefits.

        (b)     Since the occurrence of the merger of Times Mirror into Tribune,
                and the resulting enhanced severance payments, were totally
                unexpected and therefore you had no opportunity at any earlier
                date to make any decision with respect to how such payments, in
                the event that the conditions precedent which apply to them are
                satisfied, may be made to you, the enhanced severance payments
                will be paid to you in cash or deferred under the terms of the
                Times Mirror Deferred Compensation Plan for Executives, or some
                combination thereof, in accordance with your deferral election,
                made and delivered in accordance with instructions sent to you.

4.      Stock Options and Restricted Stock. The provisions relating to any Times
        Mirror stock options or restricted stock, if any, are set forth in the
        attachment to this Agreement entitled "Certain Compensation and
        Benefits".

5.      Certain Employee Benefits. Certain other employee benefits for which you
        are eligible and in which you are, or on the Effective Date will be,
        vested or otherwise are entitled to receive are set forth in the
        Attachment to this Agreement entitled "Certain Employee Benefits". You
        will be entitled to receive such certain employee benefits in accordance
        with their respective terms and provisions. However, if this Agreement
        is terminated under the provisions of paragraphs 1 (b) or 1 (d), you
        will be entitled to receive only those Certain Employee Benefits in
        which you are vested or would



<PAGE>   4

Horst A. Bergmann
April 7, 2000
Page 4


        otherwise be entitled to receive in accordance with the terms and
        provisions of said benefit plans.

6.      Taxes and other Withholding. Except as provided in the Severance
        Attachment with respect to payments to compensate you for any applicable
        excise taxes, all payments made to you under this Agreement shall be
        subject to any and all applicable withholdings, including all
        withholdings for any related federal, state or local taxes. You shall be
        solely responsible for any and all income taxes incurred by you as a
        result of your receipt of any payment contemplated or described in this
        Agreement. Subject to limitations imposed by Times Mirror employee
        benefit plans, these payments may also be reduced by any withholdings,
        contributions or deductions previously authorized by you.

7.      Death. In the event of your death, when amounts or benefits owed to you
        by Times Mirror or Tribune under this Agreement or any attachments to
        this Agreement remain unpaid or unreceived, any such amount or benefit
        shall be paid to your surviving spouse or, if said spouse does not
        survive you, to your estate, in accordance with the provisions of this
        Agreement and in accordance with the terms of any applicable employee
        benefit plan.

8.      Company Information. You acknowledge that in the course of your
        employment with Times Mirror and/or Tribune, certain information has
        been disclosed to you in confidence that was for the use of Times Mirror
        and/or Tribune or any of their respective subsidiaries or affiliates
        ("Company Information"). You understand and agree that unless such
        Company Information is placed into the public domain by a person other
        than yourself, you will keep such Company Information confidential at
        all times during and, after your employment by Times Mirror and/or
        Tribune, will not disclose or communicate Company Information to any
        third party and will not make use of Company Information on your own
        behalf or on behalf of any third party. The undertaking set forth in
        this paragraph shall survive the termination of this Agreement.

9.      Restrictive Covenants. In the event that the Enhanced Severance Benefits
        described in paragraph 3 are payable to you, then:

        (a)     You agree that for a period of 24 months following the date on
                which your employment with Times Mirror or Tribune is terminated
                by Times Mirror or Tribune, you shall not become employed in a
                comparable or higher level position of any entity or business
                which is engaged in any business activity which constitutes
                direct competition with Times Mirror, Tribune or any significant
                subsidiary or division of either of them, without the prior
                express written consent of the Chief Executive Officer of Times
                Mirror or Tribune, whichever is applicable.

        (b)     You agree that for a period of 12 months after the date on which
                your employment is terminated, you will not directly or
                indirectly (either on your own behalf or on



<PAGE>   5

Horst A. Bergmann
April 7, 2000
Page 5


                behalf of any other person or entity) attempt to persuade or
                solicit any current or prospective customer of Times Mirror or
                Tribune or any subsidiary or division of either of them with
                whom you had contact during your employment (i) to cease to do
                business or to reduce the amount of business which any customer
                of Times Mirror or Tribune, or any division or subsidiary of
                either of them, has customarily done or contemplates doing with
                Times Mirror or Tribune, or (ii) to do or expand business with a
                competitor of Times Mirror or Tribune, or any division or
                subsidiary of either of them.

        (c)     You further agree that for a period of 12 months after the date
                on which your employment is terminated, for any reason, you will
                not, directly or indirectly, either on your own behalf or on
                behalf of any other person or entity, solicit any person who is
                considered to be a management employee of Times Mirror or
                Tribune, or any division or subsidiary thereof, to terminate
                such employment, without the prior express written consent of
                the Chief Executive Officer of Times Mirror or Tribune,
                whichever is applicable.

10.     Release. In exchange for the additional benefits to be provided to you
        under this Agreement, you, or yourself and your heirs, executors,
        administrators and assigns, hereby release Times Mirror, Tribune and
        their respective affiliate and subsidiary companies, and their
        respective directors, officers, associates, employees, partners and
        agents from any claims, liabilities or causes of action whether known or
        unknown, which you ever had or now have to the date of this Agreement,
        for or by reason of any matter or cause arising out of or related to
        your employment by Times Mirror or Tribune, or the termination thereof,
        including without limitation, any claim, liability or cause of action
        arising under any federal, state or local statute, rule or regulation,
        including any claim of discrimination under the Age Discrimination in
        Employment Act, except that you do not release Times Mirror or Tribune
        and their respective affiliate and subsidiary companies from any
        obligation under the terms of this Agreement, the Merger Agreement or
        from any vested benefit under the terms of any employee benefit plan.

11.     Revocation Period.

        (a)     You acknowledge that you have been given a period of at least
                twenty-one (21) days to review and consider this Agreement
                before signing it. You further understand that you may use as
                much of the 21-day period as you wish before signing it.

        (b)     You also understand that you may revoke this release of your
                rights and claims within seven (7) days after signing this
                Agreement. Revocation may be made by delivering a written notice
                of revocation to James R. Simpson, Senior Vice President, Human
                Resources of Times Mirror. For this revocation to be effective,
                Mr. Simpson must receive written notice no later than the close
                of business on the



<PAGE>   6

Horst A. Bergmann
April 7, 2000
Page 6


                seventh day after you have signed this Agreement. However, if
                you elect to revoke this release, the rights and obligations of
                both you and Times Mirror (and Tribune, if applicable) under
                this Agreement shall in all respects terminate, it will not be
                effective or enforceable, and you will not receive the benefits
                and payment described in this Agreement.

        (c)     Provided that you have complied with all of the terms and
                conditions of this Agreement, and provided further that you have
                not exercised your revocation rights, it shall become effective
                on the day which immediately follows the expiration of the above
                seven-day revocation period described in the preceding
                paragraph.

12.     Disputes. In the event any disputes arise under the provisions of this
        Agreement, which disputes cannot be amicably resolved between the
        parties, either party may seek to resolve such dispute by filing a legal
        action in any court having jurisdiction over the matter. In such event,
        Times Mirror or Tribune, whichever is named as a party to such action,
        shall pay your reasonable attorney's fees and costs incurred in such
        proceeding, provided that any legal action commenced and/or defended by
        you was in good faith and that you prevailed in any such legal action.
        In the event of any conflict between the provisions of this paragraph 12
        and the provisions of any other document which may be involved in the
        subject matter of this Agreement, the provisions of this paragraph shall
        control.

13.     Assignment. In the event that any other person or entity shall acquire
        all or substantially all of the assets or stock of Times Mirror or
        Tribune, or any subsidiary or division of either of them, whether by a
        sale, merger, consolidation, reorganization or any other means, the
        provisions of this Agreement shall be assumed by and be fully binding
        upon any such successor person or entity, unless such obligations are
        retained by Tribune. In the absence of any such sale, merger,
        consolidation or reorganization, this Agreement shall not otherwise be
        assignable by Times Mirror, Tribune, or any such subsidiary, division or
        affiliate.

14.     Amendment. This Agreement may not be amended or modified except by a
        written amendment executed by the parties.

15.     Severability. Should any provision of this Agreement be found, held,
        declared, determined, or deemed by any court of competent jurisdiction
        to be void, illegal, invalid or unenforceable under any applicable
        statute or controlling law, the legality, validity, and enforceability
        of the remaining provisions will not be affected and the illegal,
        invalid, or unenforceable provision will be deemed not to be a part of
        the Agreement.

16.     Governing Law. This Agreement shall be governed by and construed in
        accordance with the laws of the State of California.



<PAGE>   7

Horst A. Bergmann
April 7, 2000
Page 7


Please execute both copies of this letter and return one signed original copy to
me. By signing this Agreement, you confirm and acknowledge that you have read,
understand and agree to the terms set forth herein. Further, you acknowledge
that you have been advised to seek legal and financial advice regarding these
terms.

If you have any questions or concerns, please do not hesitate to call me.

Sincerely,


/s/ JAMES R. SIMPSON

James R. Simpson
Senior Vice President, Human Resources



ACCEPTED AND AGREED:


   /s/  HORST A. BERGMANN
-----------------------------------------------
        Horst A. Bergmann


Attachments
        Severance Attachment
        Certain Compensation and Benefits attachment
        Certain Employee Benefits attachment
        Section 3.4 of Merger Agreement
        Section 6.1 (p) of Merger Agreement
        Section 6.9 of Merger Agreement



<PAGE>   8
                              SEVERANCE ATTACHMENT
                ATTACHMENT TO EMPLOYMENT AND SEVERANCE AGREEMENT
                   FOR TIMES MIRROR EXECUTIVE VICE PRESIDENTS

This attachment to your Employment and Severance Agreement describes the
Enhanced Severance Benefits and terms under which they will be paid if you are
an Executive Vice President of The Times Mirror Company as of the Effective
Date.

a)   Enhanced Severance Payments. If your employment is terminated as of the
     Effective Date or within the severance protection period after the
     Effective Date, you will be eligible for the following amount of severance:

          three times the sum of your current salary plus your highest bonus
          within the last three years (not including any special bonus payments)

b)   Eligibility For Severance. Enhanced severance payments will be paid, if,
     during the severance protection period, you:

          1)   are involuntarily terminated on account of the change of control
               for other than cause or

          2)   voluntarily terminate employment for good reason which includes
               the following:

               (a)  experience a substantial reduction in the nature or scope of
                    the authorities, powers, functions of your current position
                    (which would not include changes in title or reporting
                    relationship);

               (b)  are required to relocated your principal office more than 50
                    miles from the current site; or

               (c)  suffer a reduction in either your base salary or bonus
                    opportunity or in the aggregate value of your long-term
                    incentives, benefits and executive perquisites during the
                    severance protection period which is not remedied within 30
                    days after receipt by Tribune Company of written notice from
                    you.

c)   Severance Protection Period.  Severance will be payable in event your
     employment is terminated on account of the change of control during the
     following period of time after the change of control in a manner so as to
     cause severance to be paid:

          24 months after change of control

d)   Severance Deferral. You may elect to defer all or a portion of any
     severance payments that may become payable under the provisions of the
     Times Mirror Deferred Compensation Plan for Executives. You must complete
     the special deferral election form and return it to Human Resources in
     accordance with instructions sent to you.

e)   Outplacement. If you are eligible for enhanced severance benefits, you will
     receive outplacement as follows, or you may receive the indicated value in
     a cash payment:

          Receive outplacement for a period of one year after termination of
          employment up to a maximum of $15,000
<PAGE>   9
Severance Attachment
For Times Mirror Executive Vice Presidents
Page 2


f)   COBRA reimbursement payment. If your employment is terminated within the
     severance protection period, you will receive a payment equal to 18 months
     times the COBRA premium for the managed care program at the time of your
     termination of employment.

g)   Executive Perquisites. Any company-paid or reimbursed executive
     perquisites for which you are currently eligible, including financial
     counseling, executive physicals, and club dues and memberships, will be
     continued by Tribune after your termination of employment for the period
     represented by your severance payments, if any.

h)   Excess Parachute Payments. To the extent that any payments, including any
     bonus incentive payments, made to you are considered part of an excess
     parachute payment subject to an excise tax, those payments will be fully
     grossed up to compensate you for the amount of the excise tax. The company
     will hire an independent accounting firm to determine the calculations for
     all affected employees and will pay for the services provided by the
     accounting firm. The accounting firm's calculations will be binding unless
     an IRS ruling determines otherwise.
<PAGE>   10

                        CERTAIN COMPENSATION AND BENEFITS
                ATTACHMENT TO EMPLOYMENT AND SEVERANCE AGREEMENT

This attachment to your Employment and Severance Agreement describes how your
bonus incentive award for 2000 will be determined and describes how certain
benefits will be treated as a result of the merger.

a)      2000 Bonus Incentive Award. In the event that you remain employed
        through the Effective Date (whether on active or inactive status as
        provided in the Agreement), your bonus incentive award for 2000 under
        the Executive Incentive Plan will be payable at the maximum level
        payable under the plan (i.e., 225% of your 2000 bonus incentive target).
        However, no bonus award for 2000 will be payable in the event of your
        voluntary termination of employment before December 31, 2000 for reasons
        other than those included within the scope of the provisions of the
        Severance Attachment. Your 2000 bonus award will be payable to you on
        the earlier of (i) the date on which your employment is terminated by
        Times Mirror or Tribune or you terminate your employment for the good
        reasons included within the scope of the provisions of the Severance
        Attachment, or (ii) on December 31, 2000. In the event that a bonus
        incentive award is payable under subparagraph (i) above, the bonus award
        for 2000 will not be prorated. Any bonus award will be paid or deferred
        in accordance with your prior election regarding your 2000 bonus
        incentive award. Any amount to be deferred will be credited to your
        account under the Times Mirror Deferred Compensation Plan for Executives
        ("Plan") as of the earlier of (a) the first day of the month coinciding
        with or next following the day your 2000 bonus award would be payable as
        described above or (b) December 31, 2000 and will be paid from the Plan
        in accordance with your prior election under said Plan.

b)      Matching Bonus Restricted Stock Program. If you were eligible to and
        elected to participate in the matching bonus restricted stock program
        for 2000, you will receive an additional payment equal to 25% of your
        2000 bonus award, representing the value of an award under the matching
        bonus restricted stock program, which amount will be aggregated with
        your 2000 bonus award. This additional payment will be paid or deferred
        in accordance with your prior deferral election for your 2000 bonus
        award under the provisions of the Plan, as set forth above. There shall
        be no requirement for you to place on deposit any personally owned
        shares of Times Mirror stock to receive this additional payment.

c)      Stock Options. Prior to the Effective Date, you may exercise any of your
        options to purchase shares of Series A Common Stock of Times Mirror
        ("Stock Options") which are vested. Upon the Effective Date, or upon any
        earlier date which may be considered as a change of control as that term
        is defined under the agreement(s) regarding your Stock Options ("Change
        of Control Date"), and provided you are an employee as of such date,
        your Stock Options will become fully vested.

        In accordance with the provisions set forth in Section 3.4 of the Merger
        Agreement (a copy of which section is attached to this Attachment),
        Tribune will offer you the opportunity to cash out the value of each of
        your Stock Options at $95 per share, reduced



<PAGE>   11
Horst A. Bergmann


        by the option price of each Stock Option, or to convert each of your
        Stock Options into options to purchase 2.5 shares of Tribune common
        stock. In accordance with the provisions of Section 3.4 of the Merger
        Agreement, you will be required to decide which choice you wish to
        select for each Stock Option and to proceed in accordance with the terms
        of the offer which will be extended to you by Tribune.

d)      Restricted Stock. Upon the Effective Date, or upon any earlier date
        which may be considered as a change of control as that term is defined
        under the provisions of the restricted stock program, and provided you
        are an employee as of such date, to the extent shares of restricted
        stock are registered in your name, all restrictions on such stock will
        lapse as of such date and unrestricted ownership of such shares will
        vest in you at that time. Any personal shares of stock held on deposit
        by Times Mirror under the Matching Bonus Restricted Stock Program will
        be returned to you at that time.

e)      Executive Perquisites. Any company-paid or reimbursed executive
        perquisites for which you are currently eligible, including financial
        counseling, executive physicals, and club dues and memberships, will be
        continued by Tribune during your active employment for the severance
        protection period.



<PAGE>   12

Horst A. Bergmann

                            CERTAIN EMPLOYEE BENEFITS
                ATTACHMENT TO EMPLOYMENT AND SEVERANCE AGREEMENT

This attachment to your Employment and Severance Agreement describes certain
employee benefits which will continue after your termination of employment.

a)      Qualified Retirement Plans. While you are an employee of Times Mirror or
        any of its divisions or subsidiaries (for purposes of this attachment
        "Times Mirror"), you will continue to be eligible to participate in
        Times Mirror's retirement plans in accordance with the respective terms
        and limitations of each plan. Provided you are an employee of Times
        Mirror as of the Effective Date, accrued benefits earned as of the
        Effective Date under Times Mirror's retirement plans will become fully
        vested. Vesting will apply to any accrued benefits under Times Mirror's
        pension plan(s) and your company matching account under the Times Mirror
        Savings Plus Plan. The retirement plans provide for a maximum of one
        year of benefit accrual service or salary credit for severance payments
        (excluding any non-qualified deferrals), subject to statutory limits in
        the Internal Revenue Code, including but not limited to maximum
        deferrals, benefits or covered compensation. After your termination of
        employment, you will be entitled to receive any vested accrued benefits
        under Times Mirror's retirement plans in accordance with the terms of
        the plans and any elections you make under the plans. Distributions
        under each plan shall be made in accordance with the terms and
        procedures of each respective plan based on your participation under the
        plans.

b)      Supplemental Executive Retirement Plan. You are a participant of the
        Times Mirror Company Executive Retirement Plan for Certain Times Mirror
        Officers (SERP). In accordance with the current provisions of the SERP,
        your benefits under the SERP will be based on your total benefit service
        with all Times Mirror companies and the Times Mirror benefit formula
        (regardless of the benefit formula of the division or subsidiary where
        you earned your benefit service), less any benefits payable from Times
        Mirror's qualified pension plan(s). Under the terms of the SERP and
        provided you are an employee of Times Mirror as the Effective Date, the
        benefits that you have earned under the SERP as of the Effective Date
        will become fully vested. In addition, your benefits under the SERP will
        be calculated including your 2000 bonus incentive award, if any, in the
        computation of your final average compensation under the SERP. Further,
        you will receive credit under the SERP for any severance payments which
        may be payable as a result of the change of control.

        The calculation of your SERP benefit will include your service with
        Jeppesen GmbH, and will be offset by your unindexed vested pension from
        the German plan, which amount is DM 51,742 payable at age 65 and which
        will be converted to US dollars using the average conversion rate as
        reported in the Wall Street Journal for the last three calendar months
        prior to the commencement of your benefits.

c)      Deferred Compensation Plan. Any amounts you have deferred into the Times
        Mirror Deferred Compensation Plan for Executives will be paid to you in
        accordance with your prior elections. In addition, your 2000 bonus
        incentive award and your severance



<PAGE>   13

Horst A. Bergmann


        payments, if any, payable to you under the terms of the Agreement and
        its Attachments will be deferred in accordance with your deferral
        elections. With respect to amounts which are or will be credited to your
        account in accordance with the terms of the Plan, Section 6.9(c) of the
        Merger Agreement provides that Tribune shall credit 9% interest per
        annum cumulative, from the date any amount is credited to your account
        under the Plan effective with respect to all amounts credited under the
        Plan as of the Effective Date and on all amounts which may be deferred
        under the Plan in connection with the Merger or any termination of
        employment related thereto, whether credited with respect to deferrals
        before or after the Effective Date until all such amounts are paid under
        the Plan in accordance with it terms. If you wish to withdraw any funds
        from the Plan on account of the change of control, the Plan provides
        that you may elect to receive an immediate lump sum payment, with a 10%
        penalty for the unscheduled withdrawal.

d)      Retiree Medical. If you meet the eligibility requirements for retiree
        medical benefits as of the Effective Date, other than the requirement to
        commence pension payments, and your employment is terminated on account
        of the change of control during the Severance Protection Period, you
        will be eligible for Times Mirror's pre-age 65 retiree medical coverage
        and the post-age 65 Medigap Reimbursement program, or an equivalent or
        better health care plan provided by Tribune Company to retirees.



<PAGE>   14
                                  SECTION 3.4
                      of The Agreement and Plan of Merger
              Between Tribune Company and The Times Mirror Company
                           Dated as of March 13, 2000


     SECTION 3.4.   Options.  (a)  Each of the stock options, if any, to
purchase Company Common Shares (each, a "Company Option") issued by the Company
pursuant to any stock option or similar plan of the Company, and any non-plan
options to acquire Company Common Shares set forth in Section 4.3(a) of the
Company Disclosure Statement issued by the Company pursuant to an option
agreement or otherwise issued by the Company, which are outstanding as of the
Effective Time shall, whether or not then exercisable and vested, become fully
exercisable and vested immediately prior to the Effective Time. Each holder of a
Company Option shall be given the opportunity, prior to the Election Deadline,
to elect either (i) to cause such Company Option (a "Stock Electing Option") to
become and represent an option to purchase Tribune Common Shares (a "Tribune
Option"), in accordance with paragraph (b) of this Section 3.4, or (ii) to cause
such Company Option (a "Cash Electing Option") to be cancelled in exchange for a
single lump sum cash payment (less any applicable income or employment or other
Tax withholding), without interest (the "Company Option Cash Out Amount"), equal
to the product of (A) the number of Company Common Shares subject to such
Company Option immediately prior to the Effective Time and (B) the excess, if
any, of the Per Share Cash Amount over the exercise price per share of such
Company Option, in accordance with paragraph (c) of this Section 3.4. To the
extent any holder of a Company Option shall not have made an election with
respect to such Company Option prior to the Election Deadline, such Company
Option shall be deemed to be a Cash Electing Option.

     (b)  Each Stock Electing Option shall, by virtue of the Merger, and
without any further action on the part of any holder thereof, be assumed by
Tribune and converted into a Tribune Option to purchase that number of Tribune
Common Shares determined by multiplying the number of Company Common Shares
subject to such Company Option immediately prior to the Effective Time by the
Common Exchange Ratio, at an exercise price per Tribune Common Share equal to
the exercise price per share of such Company Option immediately prior to the
Effective Time divided by the Common Exchange Ratio, rounded down to the
nearest whole cent. If the foregoing calculation results in an assumed Company
Option being exercisable for a fraction of a Tribune Common Share, then the
number of Tribune Common Shares subject to such option shall be rounded up to
the nearest whole number of shares. The terms and conditions of each Tribune
Option shall otherwise remain as set forth in the Company Option converted into
such Tribune Option.

     (c)  Each Cash Electing Option shall, by virtue of the Merger, and without
any further action on the part of any holder thereof, be cancelled in exchange
for a single lump sum cash payment (less any applicable income or employment or
other tax withholding), without interest, equal to the Company Option Cash Out
Amount.

     (d)  The adjustment provided herein with respect to any options which are
"incentive stock options" (as defined in Section 422 of the Code), if any,
shall be and is intended to be effected in a manner which is consistent with
Section 424(a) of the Code.

     (e)  All restricted Company Series A Common Shares granted pursuant to any
equity plan or arrangements of the Company, and all individual awards of
restricted Company Series A Common Shares not granted pursuant to any such plan
or arrangement, shall become fully vested immediately prior to the Effective
Time and such Company Series A Common Shares shall be freed of restrictions and
issued to the relevant participant.
<PAGE>   15
                                 SECTION 6.1(p)
                      of The Agreement and Plan of Merger
              Between Tribune Company and The Times Mirror Company
                           Dated as of March 13, 2000


     (p)  Employee Matters. Except as set forth in Section 6.1(p) of the Company
Disclosure Statement, except in connection with any employment offer outstanding
as of the date of this Agreement, the Company shall not, and shall not permit
any of its Subsidiaries to, (i) grant any increases in the compensation of any
of its directors, officers or employees, except for increases required under
employment agreements existing on the date of this Agreement and increases for
officers and employees in the ordinary course of business consistent with past
practice that, in any event, do not increase such officer's or employee's
aggregate cash compensation at target by more than 10% over his aggregate cash
compensation at target in effect on the date of this Agreement, (ii) pay or
agree to pay any pension retirement allowance or other employee benefit not
required or contemplated by any of the existing Company Benefit Plans as in
effect on the date of this Agreement, giving effect to any modification to any
Company Benefit Plan authorized by the Company's Board of Directors prior to the
date of this Agreement and previously delivered in writing to Tribune, to any
such director, officer or employee, whether past or present, or to any other
Person, (iii) pay or award or agree to pay or award any stock option or equity
incentive awards in excess of options to acquire 50,000 shares in the aggregate
or in a manner that is inconsistent with past practice, (iv) enter into any new,
or amend any existing, employment, severance or termination agreement with any
such director, officer or employee which, in the aggregate, would obligate the
Company or its Subsidiaries to pay in excess of $1 million or (v) except as
required to comply with applicable Law, become obligated under any new Company
Benefit Plan which was not in existence on the date of this Agreement, or amend
any such plan or arrangement in existence on the date of this Agreement if such
amendment would have the effect of enhancing any benefits thereunder. The
Company shall, as promptly as practicable, provide Tribune with copies of any
amendments to any Company Benefit Plan (which shall be in accordance with the
foregoing) made after the date of this Agreement and prior to the Effective
Time.


<PAGE>   16
                                  SECTION 6.9
                      of The Agreement and Plan of Merger
              Between Tribune Company and The Times Mirror Company
                           Dated as of March 13, 2000

     SECTION 6.9. Employee Benefits.

     (a)  Obligations of Tribune; Continuance of Benefits. For a period of one
year immediately following the Effective Time, the coverage and benefits
provided to employees and former employees of the Company and its Subsidiaries
("Company Employees") pursuant to employee benefits plans or arrangements
maintained by Tribune or any of its Subsidiaries shall be no less favorable, in
the aggregate, than those provided to such employees immediately prior to the
Effective Time. Except as provided in Section 3.4 and 6.9(c), notwithstanding
the foregoing, nothing herein shall require (i) the continuation of any
particular benefit plan or prevent the amendment or termination thereof (subject
to the maintenance, in the aggregate, of the benefits, or (ii) Tribune to
continue or maintain any stock option, stock purchase or other incentive plan
related to the equity of the Company.

     (b)  Pre-Existing Limitations; Deductible; Service Credit. With respect to
any incentive, benefits and perquisite plans and programs ("Benefit Plans") of
Tribune or any Subsidiary of Tribune in which the Company Employees participate
effective as of the Effective Time or thereafter, Tribune shall: (i) waive any
limitations as to pre-existing conditions, exclusions and waiting periods with
respect to participation and coverage requirements applicable to the Company
Employees under any Benefit Plan that is an employee welfare benefit within the
meaning of Section 3(1) of ERISA ("Welfare Plan") in which such Company
Employees may be eligible to participate after the Effective Time (provided,
however, that no such waiver shall apply to a pre-existing condition, exclusion
or waiting period applicable to any Company Employee to the extent that he or
she was, as of the Effective Time, excluded from participation in a Company
Benefit Plan by reason of such pre-existing condition, exclusion or waiting
period, and provided, further, that no such waiver shall apply to a pre-existing
condition, exclusion or waiting period of any Company Employee unless the
Company Employee enrolls in the applicable Welfare Plan when first eligible to
do so), (ii) in the event Company Employees are transferred to a new Welfare
Plan within the plan year beginning January 1, 2000, for purposes of
accumulating annual deductibles, co-payments and out-of-pocket requirements,
provide each Company Employee with credit for any co-payments and deductibles
paid prior to the Effective Time, but within such plan year, for purposes of
satisfying any applicable deductible or out-of-pocket requirements under any
Welfare Plan in which such employees may be eligible to participate after the
Effective Time, and (iii) recognize all service of the Company Employees with
the Company, for all purposes other than benefit accrual, in any Benefit Plan in
which such Company Employees may be eligible to participate after the Effective
Time. Prior to the Effective Time, the Board of Directors of Tribune, or an
appropriate committee of non-employee directors thereof, shall adopt a
resolution consistent with the interpretive guidance of the SEC so that the
acquisition by any officer or director of the Company who may become a covered
person of Tribune for purposes of Section 16 of the Exchange Act and the rules
and regulations thereunder ("Section 16") of Tribune Common Shares or options to
acquire Tribune Common Shares pursuant to this Agreement and the Merger shall be
an exempt transaction for purposes of Section 16.


<PAGE>   17
                              SECTION 6.9 (CONT.)
                      of The Agreement and Plan of Merger
              Between Tribune Company and The Times Mirror Company
                           Dated as of March 13, 2000

     (c)  Employment and Severance Arrangements. As of the Effective Time,
Tribune shall assume, honor and perform in accordance with their terms all
employment, severance, change in control and other such agreements of the
Company and its Subsidiaries and Affiliates, giving effect to any amendment or
modification to any such agreement authorized by the Company's Board of
Directors prior to the date of this Agreement (the "Employment Arrangements").
With respect to the Times Mirror Deferred Compensation Plan For Executives and
the Deferred Plan for Directors Fees, Tribune shall credit 9% interest per
annum, cumulative, from the date any amount is credited to a participant under
any such plans effective with respect to all amounts credited under such plans
as of the Effective Time, and on all amounts which may be deferred under such
plans in connection with the Merger or any termination of any employment
related thereto, whether credited with respect to deferrals before or after the
Effective Time until all such amounts are paid under the plan in accordance
with its terms. Tribune shall pay the reasonable attorney's fees of the
individual party to the applicable Employment Arrangement in the event such
individual party files a claim in good faith to enforce Tribune's obligations
and prevails in such action. Such individual parties are hereby specifically
made a third party beneficiary of this Section 6.9(c).

     (d)  Successor Obligations. Notwithstanding any other provision of this
Agreement, in the event Tribune sells or otherwise disposes of any Subsidiary
of the Company coincident with or within one year after the Effective Time,
Tribune shall require as a condition of such sale or disposition that the buyer
shall assume all obligations of Tribune under this Section 6.9. In the
alternative, Tribune may elect to guarantee the payment of such obligations.