Exhibit B.9

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree that the Statement on Schedule 13D to which this exhibit is attached is filed on behalf of each of them.

Date: December 26, 2017


CHARLES F. DOLAN, individually, and as Trustee of the Charles F. Dolan 2016 Grantor Retained Annuity Trust #1A and a Trustee of the Charles F. Dolan 2009 Revocable Trust

		*
Charles F. Dolan

HELEN A. DOLAN, individually, and as Trustee of the Helen A. Dolan 2016 Grantor Retained Annuity Trust #1A and a Trustee of the Helen A. Dolan 2009 Revocable Trust

		*
Helen A. Dolan

JAMES L. DOLAN, individually

/s/ James L. Dolan
James L. Dolan

THOMAS C. DOLAN, individually

/s/ Thomas C. Dolan
Thomas C. Dolan

PATRICK F. DOLAN, individually

		*
Patrick F. Dolan

MARIANNE E. DOLAN WEBER, individually

		*
Marianne E. Dolan Weber

DEBORAH A. DOLAN-SWEENEY, individually, and as Trustee of the Marianne E. Dolan Weber 2012 Descendants Trust and the Patrick F. Dolan 2012 Descendants Trust

		*
Deborah A. Dolan-Sweeney

KATHLEEN M. DOLAN, individually, and as a Trustee of the Charles F. Dolan Children Trust FBO Kathleen M. Dolan, the Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney, the Charles F. Dolan Children Trust FBO Marianne Dolan Weber, the Charles F. Dolan Children Trust FBO Patrick F. Dolan, the Charles F. Dolan Children Trust FBO Thomas C. Dolan and the Charles F. Dolan Children Trust FBO James L. Dolan, and as Trustee of the Ryan Dolan 1989 Trust and the Tara Dolan 1989 Trust

Kathleen M. Dolan

CHARLES F. DOLAN 2009 REVOCABLE TRUST

/s/ Brian G. Sweeney

By: Brian G. Sweeney, Trustee

By: Charles F. Dolan, Trustee

HELEN A. DOLAN 2009 REVOCABLE TRUST

/s/ Brian G. Sweeney

By: Brian G. Sweeney, Trustee

By: Helen A. Dolan, Trustee

CHARLES F. DOLAN CHILDREN TRUST FBO KATHLEEN M. DOLAN

CHARLES F. DOLAN CHILDREN TRUST FBO JAMES L. DOLAN

By: Paul J. Dolan, Trustee

CHARLES F. DOLAN CHILDREN TRUST FBO MARIANNE DOLAN WEBER

CHARLES F. DOLAN CHILDREN TRUST FBO THOMAS C. DOLAN

By: Matthew J. Dolan, Trustee

CHARLES F. DOLAN CHILDREN TRUST FBO DEBORAH DOLAN-SWEENEY

CHARLES F. DOLAN CHILDREN TRUST FBO PATRICK F. DOLAN

By: Mary S. Dolan, Trustee

KATHLEEN M. DOLAN 2012

DESCENDANTS TRUST

By: Mary S. Dolan, Trustee

By: Paul J. Dolan, Trustee

CFD 2009 FAMILY TRUST FBO

KATHLEEN M. DOLAN

CFD 2009 FAMILY TRUST FBO

DEBORAH A. DOLAN-SWEENEY

CFD 2009 FAMILY TRUST FBO

MARIANNE E. DOLAN WEBER

CFD 2009 FAMILY TRUST FBO

PATRICK F. DOLAN

CFD 2009 FAMILY TRUST FBO

THOMAS C. DOLAN

CFD 2009 FAMILY TRUST FBO

JAMES L. DOLAN

CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF KATHLEEN M. DOLAN

CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF DEBORAH A. DOLAN-SWEENEY

CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF MARIANNE E. DOLAN WEBER

CFD 2010 GRANDCHILDREN TRUST FBO DESCENDANTS OF PATRICK F. DOLAN

CHARLES F. DOLAN 2012

DESCENDANTS TRUST

By: Mary S. Dolan, Trustee

By: David M. Dolan, Trustee

DEBORAH A. DOLAN-SWEENEY 2012 DESCENDANTS TRUST

/s/ Brian G. Sweeney

By: Brian G. Sweeney, as Trustee

CFD 2010 GRANDCHILDREN TRUST FBO AIDAN DOLAN

CFD 2010 GRANDCHILDREN TRUST FBO QUENTIN DOLAN

By: Kristin A. Dolan, as Trustee

DAVID M. DOLAN, as a Trustee of the CFD 2009 Family Trust FBO James L. Dolan, the CFD 2009 Family Trust FBO Thomas C. Dolan, the CFD 2009 Family Trust FBO Patrick F. Dolan, the CFD 2009 Family Trust FBO Kathleen M. Dolan, the CFD 2009 Family Trust FBO Marianne E. Dolan Weber, the CFD 2009 Family Trust FBO Deborah A. Dolan-Sweeney, the CFD 2010 Grandchildren Trust FBO Descendants of Kathleen M. Dolan, the CFD 2010 Grandchildren Trust FBO Descendants of Deborah A. Dolan-Sweeney, the CFD 2010 Grandchildren Trust FBO Descendants of Marianne E. Dolan Weber, the CFD 2010 Grandchildren Trust FBO Descendants of Patrick F. Dolan and the Charles F. Dolan 2012 Descendants Trust

David M. Dolan


		MARY S. DOLAN, as a Trustee of the Charles F. Dolan Children Trust FBO Deborah Dolan-Sweeney, the Charles F. Dolan Children Trust FBO Patrick F. Dolan, the Kathleen M. Dolan 2012 Descendants Trust, the CFD 2009 Family Trust FBO James L. Dolan, the CFD 2009 Family Trust FBO Thomas C. Dolan, the CFD 2009 Family Trust FBO Patrick F. Dolan, the CFD 2009 Family Trust FBO Kathleen M. Dolan, the CFD 2009 Family Trust FBO Marianne E. Dolan Weber, the CFD 2009 Family Trust FBO Deborah A. Dolan-Sweeney, the CFD 2010 Grandchildren Trust FBO Descendants of Kathleen M. Dolan, the CFD 2010 Grandchildren Trust FBO Descendants of Deborah A. Dolan-Sweeney, the CFD 2010 Grandchildren Trust FBO Descendants of Marianne E. Dolan Weber, the CFD 2010 Grandchildren Trust FBO Descendants of Patrick F. Dolan and the Charles F. Dolan 2012 Descendants Trust

		*
		Mary S. Dolan



*By:		/s/ Brian G. Sweeney
		Brian G. Sweeney
		as Attorney-in-Fact