Document:

EX-4.3

 Exhibit 4.3 

SUPPLEMENTAL INDENTURE FOR ESCROW RELEASE DATE 

FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 17, 2017, by and among Nexstar Escrow
Corporation, a Delaware corporation (the “Escrow Issuer”), to be merged with and into Nexstar Broadcasting, Inc., a Delaware corporation (“NBI”), Nexstar Broadcasting Group, Inc., a Delaware corporation
(“Parent”), Mission Broadcasting, Inc. (the “Guaranteeing Subsidiary”) and Wells Fargo Bank, National Association, as trustee under the Indenture referred to below. 

W I T N E S S E T H: 

WHEREAS, each of Nexstar Escrow Corporation, a Delaware corporation (the “Escrow Issuer”) and the Trustee have heretofore
executed and delivered an indenture dated as of July 27, 2016 (as amended, supplemented, waived or otherwise modified, the “Indenture”), providing for the issuance of an aggregate principal amount of $900,000,000 of 5.625%
Senior Notes due 2024 (the “Notes”) of the Issuer (as defined in the Indenture); 
 WHEREAS, the Indenture provides, among
other things, that the Escrow Issuer shall be permitted to merge with or into NBI, provided that, among other things, NBI and the Guarantors shall expressly assume upon any such merger, all of the obligations of Escrow Issuer under the Notes and the
Indenture; 
 WHEREAS, Escrow Issuer has merged with and into NBI, with NBI continuing its existence under Delaware law, and the merger has
become effective under the laws of the State of Delaware; 
 WHEREAS, the Indenture provides that upon the Escrow Release Date each of NBI
and the Guarantors shall execute and deliver to the Trustee a supplemental indenture and become parties to the Indenture and pursuant to which NBI shall assume all of the obligations of the Escrow Issuer under the Notes and the Indenture, as
applicable, and the Guarantors shall unconditionally guarantee all of NBI’s obligations under the Notes and the Indenture on the terms and conditions set forth herein and under the Indenture (the “Note Guarantee”)
(provided that the Guarantee provided by Parent is subject to the terms of the definition of “Guarantor” provided in the Indenture); 

WHEREAS, pursuant to Section 9.1 of the Indenture, the Issuer, any Guarantor and the Trustee are authorized to
execute and deliver this Supplemental Indenture to amend or supplement the Indenture, without the consent of any Holder; 
 WHEREAS, each of
NBI and the Guarantors has been duly authorized to enter into this Supplemental Indenture; and 
 WHEREAS, all acts, conditions, proceedings
and requirements necessary to make this Supplemental Indenture a valid, binding and legal agreement enforceable in accordance with its terms for the purposes expressed herein, in accordance with its terms, have been duly done and performed. 

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged,
the Escrow Issuer, NBI, Parent, the Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the benefit of the Trustee and the Holders of the Notes as follows: 

ARTICLE I 
 DEFINITIONS 

SECTION 1.1. Definitions. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recitals hereto
are used herein as therein defined. The words “herein,” “hereof” and “hereby” and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any
particular section hereof. 

 ARTICLE II 

AGREEMENT TO BE BOUND; GUARANTEE 

SECTION 2.1. Agreement to Assume Obligations. Effective upon the Escrow Release Date, NBI hereby agrees to unconditionally assume
Escrow Issuer’s Obligations under the Notes and the Indenture on the terms and subject to the conditions set forth in the Indenture and to be bound by all other applicable provisions of the Indenture and the Notes and to perform all of the
obligations and agreements of the Issuer under the Indenture. 
 SECTION 2.2. Agreement to be Bound. Each of Parent and the
Guaranteeing Subsidiary hereby becomes a party to the Indenture as a Guarantor and as such will have all of the rights and be subject to all of the obligations and agreements of a Guarantor under the Indenture (provided that the Guarantee
provided by Parent is subject to the terms of the definition of “Guarantor” provided in the Indenture). 
 SECTION 2.3.
Guarantee. Each of Parent and the Guaranteeing Subsidiary agrees, on a joint and several basis with all the existing Guarantors, to fully, unconditionally and irrevocably Guarantee to each Holder of the Notes and the Trustee the Guaranteed
Obligations pursuant to Article X of the Indenture on a senior basis (provided that the Guarantee provided by Parent is subject to the terms of the definition of “Guarantor” provided in the Indenture). 

ARTICLE III 
 MISCELLANEOUS 

SECTION 3.1. Notices. All notices and other communications each of NBI and the Guarantors shall be given as provided in the Indenture.

 SECTION 3.2. Merger and Consolidation. (i) NBI shall not sell or otherwise dispose of all or substantially all of its assets
to, or consolidate with, or merge into, another Person except in accordance with Section 4.1(a) of the Indenture and (ii) the Guaranteeing Subsidiary shall not sell or otherwise dispose of all or substantially all of its assets to, or
consolidate with or merge with or into, another Person (other than the Issuer or any Restricted Subsidiary that is a Guarantor or becomes a Guarantor concurrently with the transaction) except in accordance with
Section 4.1(g) of the Indenture. 
 SECTION 3.3. Release of Guarantee. The Note Guarantees hereunder may be
released in accordance with Section 10.2 of the Indenture. 
 SECTION 3.4. Parties. Nothing expressed or
mentioned herein is intended or shall be construed to give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or
any provision herein or therein contained. 
 SECTION 3.5. Governing Law. This Supplemental Indenture shall be governed by, and
construed in accordance with, the laws of the State of New York. 
 SECTION 3.6. Severability. In case any provision in this
Supplemental Indenture shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent
of such invalidity, illegality or unenforceability. 
 SECTION 3.7. Benefits Acknowledged. The Guaranteeing Subsidiary’s Note
Guarantee is subject to the terms and conditions set forth in the Indenture. The Guaranteeing Subsidiary acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this
Supplemental Indenture and that the guarantee and waivers made by it pursuant to its Note Guarantee are knowingly made in contemplation of such benefits. 

SECTION 3.8. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly amended hereby, the Indenture is
in all respects ratified and confirmed and all the terms, conditions and 

 
provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Notes heretofore or hereafter
authenticated and delivered shall be bound hereby. 
 SECTION 3.9. The Trustee. The Trustee makes no representation or warranty as to
the validity or sufficiency of this Supplemental Indenture or with respect to the recitals contained herein, all of which recitals are made solely by the other parties hereto. 

SECTION 3.10. Counterparts. The parties hereto may sign any number of copies of this Supplemental Indenture. Each signed copy shall be
an original, but all of them together represent the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this
Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all
purposes. 
 SECTION 3.11. Execution and Delivery. The Guaranteeing Subsidiary agrees that its Note Guarantee shall remain in full
force and effect notwithstanding any failure to endorse on each Note a notation of any such Note Guarantee. 
 SECTION 3.12.
Headings. The headings of the Articles and the Sections in this Supplemental Indenture are for convenience of reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof. 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed as of the date first above written. 
  

					
	NEXSTAR BROADCASTING, INC.
		
	By:	 	 /s/ Thomas E. Carter

		 	Name:	 	Thomas E. Carter
		 	Title:	 	Chief Financial Officer
	
	 NEXSTAR BROADCASTING GROUP, INC.

as a Guarantor

		
	By:	 	 /s/ Thomas E. Carter

		 	Name:	 	Thomas E. Carter
		 	Title:	 	Executive Vice President and Chief Financial Officer
	
	 MISSION BROADCASTING, INC.

as a Guarantor

		
	By:	 	 /s/ Dennis P. Thatcher

		 	Name:	 	Dennis P. Thatcher
		 	Title:	 	President and Treasurer

 
					
	 WELLS FARGO BANK, NATIONAL ASSOCIATION

as Trustee

		
	By:	 	 /s/ John C. Stohlmann

		 	Name:	 	John C. Stohlmann
		 	Title:	 	Vice PresidentEX-4.5

 Exhibit 4.5 

THIRD SUPPLEMENTAL INDENTURE 

THIS THIRD SUPPLEMENTAL INDENTURE (this “Third Supplemental Indenture”), dated as of January 17, 2017, is entered into
by and among LIN Television Corporation, a Delaware corporation (“LIN Television” or the “Issuer”), Nexstar Media Group, Inc., a Delaware corporation (“Nexstar Media”), Nexstar Broadcasting, Inc., a
Delaware corporation (“NBI” and together with Nexstar Media, the “New Guarantors”), and The Bank of New York Mellon, as trustee under the indenture referred to below (the “Trustee”). 

W I T N E S S E T H 
 WHEREAS, an
aggregate of $400,000,000 of 5.875% Senior Notes due 2022 (the “Notes”) was issued pursuant to an indenture (the “Original Indenture”), dated as of November 5, 2014, between Media General Financing Sub, Inc., a
Delaware corporation (“Financing Sub”), and the Trustee; 
 WHEREAS, LIN Television, the guarantors named therein and the
Trustee entered into a first supplemental indenture to the Original Indenture, dated as of December 19, 2014 (the “First Supplemental Indenture”), pursuant to which LIN Television assumed the obligations of Finance Sub under
the Notes and the Indenture and the guarantors named therein agreed to guarantee all of the Issuer’s obligations under the Notes and the Indenture; 

WHEREAS, LIN Television, the guarantors named therein and the Trustee entered into a second supplemental indenture to the Original Indenture,
dated as of November 4, 2015 (the “Second Supplemental Indenture” and together with the First Supplemental Indenture and the Original Indenture, the “Indenture”), pursuant to which an additional entity
guaranteed the Indenture and the Notes; 
 WHEREAS, Media General, Inc., the parent company of the Issuer (“Media
General”), is party to that certain Agreement and Plan of Merger, dated as of January 27, 2016, with Nexstar Media, pursuant to which Media General will become a subsidiary of Nexstar Media and will subsequently merge (the “NBI-Media General Merger”) with and into NBI. 
 WHEREAS, Section 901(i) of the Indenture
provides that, without the consent of any Holder, the Issuer, when authorized by a Board Resolution and upon delivery to the Trustee of an Opinion of Counsel to the effect that such supplemental indenture is permitted under the Indenture, and the
Trustee, at any time and from time to time, may enter into one or more indentures supplemental thereto, in form and substance reasonably satisfactory to the Trustee, to make any change to the Indenture that does not adversely affect the rights of
any Holder in any material respect or that would provide any additional rights or benefits to the Holders; 
 WHEREAS, Section 801(b) of the
Indenture provides that each Guarantor shall not, and the Issuer shall not permit a Guarantor to, in a single transaction or series of related transactions merge or consolidate with or into any other Person (other than the Issuer or any other
Guarantor) or sell, assign, convey, transfer, lease or otherwise dispose of all or substantially all of its properties and assets on a Consolidated basis to any Person (the “Successor Guarantor”) (other

 
than the Issuer or any other Guarantor) unless at the time and after giving effect thereto: (i) either (1) such Guarantor shall be the surviving company, or (2) the Successor Guarantor
shall be a corporation duly organized and validly existing under the laws of the United States, any state thereof or the District of Columbia and shall expressly assume by an indenture supplemental hereto, executed and delivered to the Trustee, in a
form reasonably satisfactory to the Trustee, all the obligations of such Guarantor under the Notes and the Indenture and the Registration Rights Agreement; (ii) immediately before and immediately after giving effect to such transaction, no
Default or Event of Default shall have occurred and be continuing; and (iii) such Successor Guarantor (if other than such Guarantor) shall have delivered to the Trustee, in form and substance reasonably satisfactory to the Trustee, an
Officer’s Certificate and an Opinion of Counsel, each stating that such consolidation, merger, sale, assignment, conveyance, transfer, lease or disposition and such supplemental indenture comply with the Indenture; 

WHEREAS, following the NBI-Media General Merger, the New Guarantors shall become a guarantor of the
Notes by executing and delivering a supplemental indenture to the Indenture. 
 NOW THEREFORE, in consideration of the foregoing and for
good and valuable consideration, the receipt of which is hereby acknowledged, the Trustee, LIN Television and the New Guarantors mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 

1. Capitalized Terms. Unless otherwise defined in this Third Supplemental Indenture, capitalized terms used herein without definition
shall have the meanings assigned to them in the Indenture. 
 2. Agreement to Guarantee. Nexstar Media hereby becomes party to the
Indenture as a Guarantor and as such will have all of the rights and be subject to all of the obligations and agreements of a Guarantor under the Indenture; provided that such Guarantee by Nexstar Media shall only be a Guarantee of
(a) the due and punctual payment of the principal of, premium, if any, and interest on the Notes, whether at maturity, by acceleration, redemption or otherwise, the due and punctual payment of interest on overdue principal and premium, and, to
the extent permitted by law, interest, and the due and punctual performance of all other financial obligations of the Issuer to the Holders or the Trustee all in accordance with the terms of this Indenture and (b) in case of any extension of
time of payment or renewal of any Notes or any of such other financial obligations, that the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at Stated Maturity, by
acceleration or otherwise. NBI hereby becomes party to the Indenture as a Guarantor and as such will have all of the rights and be subject to all of the obligations and agreements of a Guarantor under the Indenture. 

3. NEW YORK LAW TO GOVERN. THE INDENTURE, THE NOTES AND THE GUARANTEES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF NEW YORK. 

  
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 4. Counterparts. The parties may sign any number of copies of this Third Supplemental
Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. 
 5. Effect of Headings.
The Section headings herein are for convenience only and shall not affect the construction hereof. 
 6. The Trustee. The Trustee
shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Third Supplemental Indenture or the New Guarantee or for or in respect of the recitals contained herein, all of which recitals are made solely
by LIN Television and the New Guarantors. 
 7. No Recourse against Others. No recourse for the payment of the principal of, premium,
if any, or interest on any of the Notes or for any claim based thereon or otherwise in respect thereof, and no recourse under or upon any obligation, covenant or agreement of any obligor in the Indenture, or in any of the Notes or Guarantees or
because of the creation of any Indebtedness represented thereby, shall be had against any incorporator, stockholder, officer, director, employee or controlling person of the Company or any Guarantor or of any Subsidiary or of any successor Person
thereof. Each Holder, by accepting the Notes, waives and releases all such liability. The waiver and release are part of the consideration for the issuance of the Notes. Such waiver may not be effective to waive liabilities under the federal
securities laws. 
 8. Ratification of Indenture; Third Supplemental Indenture Part of Indenture. Except as expressly amended hereby,
the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Third Supplemental Indenture shall form a part of the Indenture for all purposes, and every
Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby. 
 [Signature Pages Follow] 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Third Supplemental Indenture to be duly
executed and attested, all as of the date first above written. 
  

			
	ISSUER:
	
	LIN TELEVISION CORPORATION
		
	By:	 	 /s/ Thomas E. Carter

	Name:	 	Thomas E. Carter
	Title:	 	Chief Financial Officer
	
	NEW GUARANTORS:
	
	NEXSTAR MEDIA GROUP, INC.
		
	By:	 	 /s/ Thomas E. Carter

	Name:	 	Thomas E. Carter
	Title:	 	Chief Financial Officer
	
	NEXSTAR BROADCASTING, INC.
		
	By:	 	 /s/ Thomas E. Carter

	Name:	 	Thomas E. Carter
	Title:	 	Chief Financial Officer

 
			
	TRUSTEE:
	
	THE BANK OF NEW YORK MELLON, as Trustee
		
	By:	 	 /s/ Francine Kincaid

	Name:	 	Francine Kincaid
	Title:	 	Vice President

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