Knockout Licensing has added a new partner and extended two existing relationships for the hit BBC series “Downton Abbey” in North America.

New licensee Cryptozoic Entertainment has signed on to produce a line of Downton Abbey collectible trading cards and trading card binders.

Existing partners Workman Publishing and Rizzoli have both extended their licenses for publishing products with Workman planning 2014 engagement diaries and 2014 page-a-day calendars and Rizzoli preparing 2014 wall calendars.

Season three of “Downton Abbey” debuted Jan. 6 on PBS in the U.S. and quadrupled the average primetime audience for the public broadcaster with 7.9 million viewers.

Knockout Licensing is actively seeking additional licensing partners for the series in home furnishings, jewelry, kitchen accessories, lighting, timepieces, tableware and formal attire.