The Matsushita JR series was a line of microcomputers produced by Matsushita Electric Industrial (now Panasonic) during the 1980s.
 The JR series included four computer models: the JR-100, the JR-200, the JR-300 and the JR-800.
 A version of the JR-200 called the Panasonic JR-200U was developed for the North American and European markets and was announced in January 1983.
Zachary "Zach" Tyler Eisen (born September 23, 1993) is an American voice actor.
 His roles include Aang in the animated series "", Lucas Nickle in "The Ant Bully", Andrew in Nick Jr.'s "Little Bill", and Pablo the Penguin in Nick Jr.'s "The Backyardigans".
 While living in Connecticut he did most of the "Avatar: The Last Airbender" recordings via satellite.
Edge Games is a video game developer and publisher headquartered in Pasadena, California, known for the practices of its chief executive and founder, Tim Langdell, in enforcing trademarks relating to the word "edge", which sources have described as "litigious".
 Langdell has defended these practices citing that Edge has only sued two companies since the late 1980s.
Will Kindrick is an American filmmaker, commercial, music video director who has written and directed works for Ice Cube, Brian Wilson, She & Him, Mates of State, Postino among others.
 He is also known for his work on the Nick Jr series Yo Gabba Gabba!
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Yo Gabba Gabba!
 is an American live action/puppet children's television show starring five costumed toys-come-to-life and their friend DJ Lance Rock.
 The Gabba gang explores a single topic in each episode, e.g. "Adventure," "Friends," and "Dance," through songs and short storylines in the half-hour program.
 Additionally, the show teaches children life and social skills, such as sharing and trying new foods.
 It also encourages viewers to move along with and dance with the characters in the program.
 The show is noted for its indie-culture guest stars and bands, and for drawing visual inspiration from 8-bit video games and "H. R. Pufnstuf", among other classic television shows.
 Created by Christian Jacobs (lead singer of the Aquabats) and Scott Schultz, the show is written to appeal to children and their parents.
 The television program has spawned a touring live stage show, various toys and branded clothing.
 Trademarks relating to "Yo Gabba Gabba!"
 and its characters are held by GabbaCaDabra, LLC.
The following is an episode list for the Nickelodeon animated television series titled "Dora the Explorer".
 The show debuted on August 14, 2000 and ended on June 5, 2014.
 It aired on Nickelodeon's sister channel, Nick Jr., as well as Nickelodeon's preschool block, Nick Jr. Nick Play Date), and has also aired on Comcast's On Demand and CBS.
Dead Grandma is a 10-episode comedy Web series created by Will Kindrick.
 It is written by Kindrick, Courtney Branning, Matt Heder and is produced by Mummy Space Island Productions.
 The series follows the life of a hapless young college student Andy (Matt Heder), whose grandma (Beverly Welsh) comes back from the dead to help him find love.
 The series is hosted by Jon Heder who begins each episode with a campy intro reminiscent of the openings of nostalgic shows such as Masterpiece Theater and The Wonderful World of Disney.
Puffin Rock is an Irish children's television series that originally aired on RTÉjr in Ireland, Nick Jr., Nick Jr.
 Too and Milkshake!
 in the United Kingdom, Nick Jr. in Italy, ABC Kids in Australia, and Netflix in Ireland, the United States, Canada, Latin America, the Benelux countries, UK, France, and Germany.
 The program is narrated by Chris O'Dowd.
 The series premiered on 12 January 2015.
Worldwide Day of Play is an annual event designed to encourage children and parents to turn off the television and play, especially outdoors.
 The yearly event officially began on all US Nickelodeon channels: Nickelodeon, Nick GAS (until 2008), Noggin (now Nick Jr.), The N (now TeenNick), Nicktoons and NickMusic on October 1, 2005.
 The event was first shown on October 2, 2004 on Nickelodeon.
 Some foreign versions of Nick also participated.
 The event is designed as a finale for Nick's six-month-long Let's Just Play campaign.
 In addition, Nick.com would also have special features for children to learn how to stay active and healthy.
Maisy is a British-Australian children's animated television series based on the book series by Lucy Cousins.
 It is narrated by Neil Morrissey and Brian Greene in the US version.
 In the United Kingdom, it was broadcast on CITV (also broadcast on Nick Jr. in 2002 or Network Ten in 2006) In the United States, it aired on the Nick Jr. block of the Nickelodeon cable television network and on Noggin (now Nick Jr.) The series was produced by King Rollo Films and PolyGram Visual Programming and later as Universal Pictures Visual Programming when PolyGram folded into Universal, when the company itself was bought by beverage brand, Seagram.

Question: Who holds the trademarks relating to the Nick Jr series that Will Kindrick worked on?
Answer: GabbaCaDabra, LLC