Primetime Cable Ratings: December 20, 2017

History takes two of the top four spots on Wednesday night, with VIKINGS drawing 2.1 million viewers and a 0.5 demo rating, while KNIGHTFALL retained 1.5 million viewers and 60% of the A18-49 rating. Both shows are up in viewership, from last week's numbers.

TNT pushed both episodes of THE LIBRARIANS into the top 7, averaging over 1.4 million viewers and a 0.3 demo rating, from 8 to 10 PM.

Off the chart, the third and final night of the HBO miniseries, GUNPOWDER collected just 377,000 total viewers and a weak 0.07 rating in Adults 18-49.

Top Primetime Cable Programs:

Rank	Show	Net	Time	P2*	A18-49
1	VIKINGS	HIST	9:00 PM	2,100	0.5
2	Property Brothers at home	HGTV	9:00 PM	1,719	0.3
3	The Librarians	TNT	8:00 PM	1,484	0.3
4	KNIGHTFALL	HIST	10:01 PM	1,483	0.3
5	Homestead Rescue	DISC	9:00 PM	1,477	0.3
6	House Hunters	HGTV	10:00 PM	1,451	0.3
7	The Librarians	TNT	9:00 PM	1,395	0.3
8	Murder in the Heartland	ID	10:00 PM	1,361	0.4
9	House Hunters INTL	HGTV	10:30 PM	1,343	0.3
10	Unusual Suspects	ID	9:00 PM	1,319	0.3
11	Bowl Game: LA TECH v SMU	ESPN	8:00 PM	1,250	0.4
12	Black Ink Crew	VH1	9:00 PM	1,231	0.6
13	Storage Wars	A&E	9:30 PM	1,178	0.3
14	The Real Housewives: NJ	BRVO	9:00 PM	1,159	0.4
15	Storage Wars	A&E	9:00 PM	1,148	0.2
16	Full Frontal w/SB	TBS	10:30 PM	1,095	0.4
17	IC: Behind the Battle	FOOD	8:00 PM	746	0.3
18	Little Women: ATL	LIFE	9:00 PM	744	0.3
19	Ozzy & Jack's World Detour	A&E	10:01 PM	730	0.2
20	NCAA BKBL: WOF v NC	ESPN2	9:04 PM	721	0.2
21	Iron Chef Showdown	FOOD	9:00 PM	668	0.2
22	Expedition Unknown	TRAV	9:00 PM	631	0.2
23	HAPPY!	SYFY	10:00 PM	619	0.2
24	Total Divas	E!	9:00 PM	612	0.2
25	Terra's Big House	LIFE	10:02 PM	610	0.2

* Viewership (,000)