Goodwill and Intangible Assets

As of

June 30, 2018

and

December 31, 2017,

our intangible assets and related accumulated amortization consisted of the following (in thousands):

	As of June 30, 2018							As of December 31, 2017
			Accumulated							Accumulated
	Gross		Amortization			Net		Gross		Amortization			Net
Intangible assets not currently subject to amortization:
Broadcast licenses	$	1,584,402	$	(53,699	)	$	1,530,703	$	1,584,402	$	(53,699	)	$	1,530,703
Goodwill		611,100		-			611,100		611,100		-			611,100
	$	2,195,502	$	(53,699	)	$	2,141,803	$	2,195,502	$	(53,699	)	$	2,141,803

Intangible assets subject to amortization:
Network affiliation agreements	$	6,134	$	(4,842	)	$	1,292		6,134	$	(3,551	)	$	2,583
Other definite lived intangible assets		143,446		(81,542	)		61,904		143,446		(72,245	)		71,201
	$	149,580	$	(86,384	)	$	63,196	$	149,580	$	(75,796	)	$	73,784

Total intangibles	$	2,345,082	$	(140,083	)	$	2,204,999	$	2,345,082	$	(129,495	)	$	2,215,587

Amortization expense for the

six

-months ended

June 30, 2018

and

2017

was

$10.6

million and

$12.2

million, respectively. Based on the current amount of intangible assets subject to amortization, we expect that amortization expense for the remainder of

2018

will be approximately

$10.0

million, and, for the succeeding

five

years, amortization expense will be approximately as follows:

2019,

$15.4

million;

2020,

$12.4

million;

2021,

$8.3

million;

2022,

$4.8

million; and

2023,

$2.9

million. If and when acquisitions and dispositions occur in the future, actual amounts

may

vary materially from these estimates.

Impairment of goodwill and broadcast licenses

Our intangible assets are primarily comprised of broadcast licenses. There were

triggering events that required a test of our goodwill or intangible assets for impairment during the

six

-month period ended

June 30, 2018.