Question: What country of origin does Katy Mixon and Eastbound & Down have in common?

Context articles: Great Russell Street
Katy Mixon
Rules of origin
Katy Trail State Park
Homeland
Sarah Dunn (author)
Eastbound &amp; Down
Silver Dagger (song)
Ealing Common Depot
Country of origin

Great Russell Street is a street in Bloomsbury, London, best known for being the location of the British Museum.
 It runs between Tottenham Court Road (part of the A400 route) in the west, and Southampton Row (part of the A4200 route) in the east.
 It is one-way only (eastbound) between its western origin at Tottenham Court Road and Bloomsbury Street.
Katy Mixon (born March 30, 1981) is an American actress.
 She began her career playing supporting roles in films such as "The Quiet" (2005), "Four Christmases" (2008), and "State of Play" (2009), before landing the female leading role in the HBO comedy series "Eastbound & Down" (2009–2013).
Rules of origin are used to determine the country of origin of a product for purposes of international trade.
 There are two common types of rules of origin depending upon application, the preferential and non-preferential rules of origin (19 CFR 102).
 The exact rules vary from country to country, from agreement to agreement.
The Katy Trail State Park is a state park in the U.S. state of Missouri that contains the Katy Trail, a recreational rail trail that runs 240 mi in the right-of-way of the former Missouri–Kansas–Texas Railroad.
 Running largely along the northern bank of the Missouri River, it is the country's longest Rails-to-Trails trail.
 The trail is open for use by hikers, joggers, and cyclists year-round, from sunrise to sunset.
 Its hard, flat surface is of "limestone pug" (crushed limestone).
A homeland ( "country of origin" and native land) is the concept of the place (cultural geography) with which an ethnic group holds a long history and a deep cultural association – the country in which a particular national identity began.
 As a common noun, homeland, it simply connotes the country of one's origin.
 When used as a proper noun, the Homeland, as well as its equivalents in other languages, often have ethnic nationalist connotations.
 A homeland may also be referred to as a "fatherland", a "motherland", or a "mother country", depending on the culture and language of the nationality in question.
Sarah Dunn (born 1970) is an American author and television writer.
 She is known for her novels 'The Big Love' and 'Secrets to Happiness', and the ABC sitcom "American Housewife", starring Katy Mixon.
Eastbound & Down is an American sports comedy television series that was broadcast on HBO, starring Danny McBride as Kenny Powers, a former professional baseball pitcher, who after an up and down career in the major leagues is forced to return to his hometown middle-school in Shelby, North Carolina, as a substitute physical education teacher.
"Silver Dagger", with variants such as "Katy Dear", "Molly Dear", "The Green Fields and Meadows", "Awake, Awake, Ye Drowsy Sleepers" and others (Laws M4 & G21, Roud 2260 & 2261), is an American folk ballad, whose origins lie possibly in Britain.
 These songs of different titles are closely related, and two strands in particular became popular in commercial Country music and Folk music recordings of the twentieth century: the "Silver Dagger" version popularised by Joan Baez, and the "Katy Dear" versions popularised by close harmony brother duets such as The Callahan Brothers, The Blue Sky Boys and The Louvin Brothers.
Ealing Common Depot is a London Underground railway depot on the District line, located between Acton Town and Ealing Common stations.
 It is accessed by road on Granville Gardens, off the Uxbridge Road in Ealing Common.
 From the main-line (District) it is accessed at Ealing Common by a junction immediately to the east of the platforms.
 Trains can enter or leave the depot to/from either the Westbound or Eastbound tracks at Ealing Common.
 It is also accessed at the Acton Town end through a junction just to the West of Acton Town eastbound platforms.
 Trains can enter or leave the depot to/from either the local or fast eastbound platforms, however trains in either of the westbound platforms at Acton Town have no access to/from the depot.
Country of origin (COO), is the country of manufacture, production, or growth where an article or product comes from.
 There are differing rules of origin under various national laws and international treaties.
 Country of origin labelling is also known as "place-based branding", the "made-in image" or the "nationality bias."
 In some regions or industries, country of origin labelling may adopt unique local terms such as terroir used to describe wine appellations based on the specific region where grapes are grown and wine manufactured.