Exhibit 21
LIST OF SUBSIDIARIES OF DISCOVERY COMMUNICATIONS, INC.
| Entity | Place of Formation | |
| 3D NetCo, LLC | Delaware | |
| A123 Online Interactive Services, Inc. | Delaware | |
| Academy123, Inc. | Delaware | |
| Adventure Race Productions, Inc. | Delaware | |
| All Music SRL | Italy | |
| AMHI, LLC | Delaware | |
| Animal Planet (Asia) LLC | Delaware | |
| Animal Planet Europe P/S | UK | |
| Animal Planet (Japan) LLP | Delaware | |
| Animal Planet (Latin America), L.L.C. | Delaware | |
| Animal Planet North America, Inc. | Delaware | |
| Animal Planet Televizyon Yayincilik Anonim Sirketi | Turkey | |
| Animal Planet, LLC | Delaware | |
| Animal Planet, LP | Delaware | |
| Avrupa Spor Televizyon Yayincilik Anonim Sirketi | Turkey | |
| Canadian AP Ventures Company | Nova Scotia | |
| Clearvue & SVE, Inc. | Illinois | |
| Convex Conversion, LLC | Delaware | |
| DHC Discovery, Inc. | Colorado | |
| DHC Ventures, LLC | Delaware | |
| Discovery 3D Holding, Inc. | Delaware | |
| Discovery Advertising Sales Taiwan Pte Ltd. | Singapore | |
| Discovery AP Acquisition, Inc. | Delaware | |
| Discovery Asia, LLC | Delaware | |
| Discovery Channel (Mauritius) Private Limited | Mauritius | |
| Discovery Civilization North America, Inc. | Delaware | |
| Discovery Comunicacoes do Brasil LTDA | Brazil | |
| Discovery Communications Argentina SRL | Argentina | |
| Discovery Communications Benelux BV | Netherlands | |
| Discovery Communications Bulgaria EOOD | Bulgaria | |
| Discovery Communications Chile SpA | Chile | |
| Discovery Communications Colombia Ltda | Colombia | |
| Discovery Communications Deutschland GmbH & Co. KG | Germany | |
| Discovery Communications Europe Limited | England and Wales | |
| Discovery Communications Holding, LLC | Delaware | |
| Discovery Communications India | India | |
| Discovery Communications Ltd., L.L.C. | Delaware | |
| Discovery Communications Nordic ApS | Denmark | |
| Discovery Communications Spain and Portugal, S.L. | Spain | |
| Discovery Communications Ukraine TOV | Ukraine | |
| Discovery Communications Ventures, LLC | Delaware | |
| Discovery Communications, LLC | Delaware | |
| Discovery Content Verwaltungs GmbH | Germany | |
| Discovery Corporate Services Limited | UK | |
| Discovery Czech Republic S.R.O. | Czech Republic | |
| Discovery doo Beograd | Serbia/UK | |
| Discovery Education Assessment LLC | Delaware | |
| Discovery Education Canada ULC | Nova Scotia | |
| Discovery Education Europe Group Limited | UK | |
| Discovery Education Europe Ltd. | UK | |
| Discovery Education, Inc. | Illinois | |
| Discovery Enterprises, LLC | Delaware | |
| Discovery Entertainment Services, Inc. | Delaware | |
| Discovery Extreme Holdings, LLC | Delaware | |
| Discovery Extreme Music Publishing, LLC | Delaware | |
| Discovery (Barbados) Holdings Srl | Barbados | |
| Discovery (Barbados) Holdings 2 Srl | Barbados | |
| Discovery (Barbados) Holdings 3 Srl | Barbados | |
| Discovery Foreign Holdings, Inc. | Delaware | |
| Discovery France Holdings II SAS | France | |
| Discovery France Holdings SAS | France | |
| Discovery Germany, L.L.C. | Delaware | |
| Discovery Health Channel, LLC | Delaware | |
| Discovery Health North America, Inc. | Delaware | |
| Discovery Health NS, ULC | Nova Scotia | |
| Discovery Health Ventures, LLC | Delaware | |
| Discovery Holding Company | Delaware | |
| Discovery Hungary Media Services LLC | Hungary | |
| Discovery Italia S.r.l. | Italy | |
| Discovery Kids North America, Inc. | Delaware | |
| Discovery Latin America Holdings, LLC | Delaware | |
| Discovery Latin America Investments, LLC | Delaware | |
| Discovery Latin America S.L. | Spain | |
| Discovery Latin America, L.L.C. | Delaware | |
| Discovery Licensing, Inc. | Delaware | |
| Discovery Lighting Investments Ltd. | UK | |
| Discovery Luxembourg 1 S.à r.l. | Luxembourg | |
| Discovery Luxembourg 3 S.à r.l. | Luxembourg | |
| Discovery Luxembourg 4 S.à r.l. | Luxembourg | |
| Discovery Luxembourg Holdings 1 S.à r.l. | Luxembourg | |
| Discovery Luxembourg Holdings 2 S.à r.l. | Luxembourg | |
| Discovery Media Private Limited | Singapore | |
| Discovery Media Ventures Limited | UK | |
| Discovery Medya Hizmetleri Limited Sirketi | Turkey | |
| Discovery Mexico Holdings, LLC | Delaware | |
| Discovery Networks Asia- Pacific Networks (Malaysia) Sdn. Bhd. | Malaysia | |
| Discovery Networks Asia-Pacific PTE. LTD | Singapore | |
| Discovery Networks Caribbean, Inc. | Barbados | |
| Discovery Networks Finland Oy | Finland | |
| Discovery Networks International Holdings Limited | England and Wales | |
| Discovery Networks International LLC | Colorado | |
| Discovery Networks Korea Limited | Korea | |
| Discovery Networks Mexico, S. de R.L. de C.V. | Mexico | |
| Discovery Networks Norge Holding AS | Norway | |
| Discovery Networks Norway AS | Norway | |
| Discovery Networks Sweden AB | Sweden | |
| Discovery Networks, S.L. | Spain | |
| Discovery New York, Inc. | Delaware | |
| Discovery OWN Holdings, LLC | Delaware | |
| Discovery Patent Licensing, LLC | Delaware | |
| Discovery Pet Online Administration, Inc. | Delaware | |
| Discovery Pet Online Services, LLC | Delaware | |
| Discovery Pet Video, LLC | Delaware | |
| Discovery Polska SP z.o.o. | Poland | |
| Discovery Productions Group, Inc. | Delaware | |
| Discovery Productions, LLC | Delaware | |
| Discovery Publishing, Inc. | Delaware | |
| Discovery Realty, LLC | Delaware | |
| Discovery Retail Cafes, LLC | Delaware | |
| Discovery Romania S.r.l. | Romania | |
| Discovery SC Investment, Inc. | Delaware | |
| Discovery Science Televizyon Yayýncýlýk Anonim Þirketi | Turkey | |
| Discovery Services Australia Pty Ltd | Australia | |
| Discovery Services Hong Kong Limited | Hong Kong | |
| Discovery Services, Inc. | Delaware | |
| Discovery Solar Ventures, LLC | Delaware | |
| Discovery South America Holdings, LLC | Delaware | |
| Discovery Studios, LLC | Delaware | |
| Discovery Talent Services, LLC | Delaware | |
| Discovery Television Center, LLC | Delaware | |
| Discovery Televizyon Yayýncýlýk Anonim Þirketi | Turkey | |
| Discovery Thailand Holdings, LLC | Delaware | |
| Discovery Times Channel, LLC | Delaware | |
| Discovery Trademark Holding Company, Inc. | Delaware | |
| Discovery TV Journalism Productions, LLC | Delaware | |
| Discovery Wings, LLC | Delaware | |
| Discovery World Television, Inc. | Maryland | |
| Discovery.com, LLC | Delaware | |
| Discoverytravel.com, LLC | Delaware | |
| DLA Holdings, LLC | Delaware | |
| DNAP Holdings Pte. Ltd. | Singapore | |
| DNE Music Publishing Limited | England and Wales | |
| DNI Europe Holdings Limited | England and Wales | |
| DNI Foreign Holdings Limited | England and Wales | |
| DNI German Holdings I Limited | England and Wales | |
| DNI German Holdings II Limited | England and Wales | |
| DNI Global LLP | England and Wales | |
| DNI Group Holdings, LLC | Delaware | |
| DNI Ireland Holdings 3 | Ireland | |
| DNI Jersey 1 Limited | Jersey | |
| DNI Jersey 2 Limited | Jersey | |
| DNI Jersey 3 Limited | Jersey | |
| DNI Licensing Limited | UK | |
| DNI Netherlands Holdings 1 Limited (f/k/a DNI Ireland Holdings 1 Limited) | Netherlands | |
| DNI Netherlands Holdings 2 Limited (f/k/a DNI Ireland Holdings 2 Limited) | Netherlands | |
| DNI US Limited | England and Wales | |
| DPlay Entertainment Ltd. | UK | |
| Dramatic Edge Music Publishing, LLC | Delaware | |
| DSC Japan, L.L.C. | Delaware | |
| DTHC, Inc. | Delaware | |
| Education Media Delivery Ltd. | UK | |
| E-FM Sverige AB | Sweden | |
| Enformasyon Reklamcilik Ve Filmcilik Sanayi Ve Ticaret A.S. | Turkey | |
| Epic Modern Music Publishing, LLC | Delaware | |
| Eskiltuna SBS Radio AB | Sweden | |
| ESP Media Distribution Portugal, S.A. | Portugal | |
| Euradio I Sverige AB | Sweden | |
| Eurosport Events Ltd. | UK | |
| Eurosport Media SA | Switzerland | |
| Eurosport SAS | France | |
| Eurosport SRL | Italy | |
| Eurosport Television BV | Netherlands | |
| Eurosportnews Distribution Ltd. | Hong Kong | |
| FM 5 A/S | Denmark | |
| FM 6 A/S | Denmark | |
| GeoNova Publishing, Inc. | Delaware | |
| Global Mindset Music, LLC | Delaware | |
| Green Content sp Zo.o | Poland | |
| Gran TV S.A. | Argentina | |
| HowStuffWorks, LLC | Delaware | |
| Incentive Management Services, LLC | Delaware | |
| JV Network, LLC | Delaware | |
| Kaimax Media Oy | Finland | |
| Liberty Animal Inc. | Delaware | |
| Listening Works, LLC | Delaware | |
| Liv (Latin America), LLC | Delaware | |
| M Distribution Chile SpA | Chile | |
| MDTV Distribution Iberia SL | Spain | |
| Miracle Sound Oulu Oy | Finland | |
| Miracle Sound Oy | Finland | |
| Miracle Sound Tampere Oy | Finland | |
| Mix Megapol.se AB | Sweden | |
| Network USA Incorporated | Maryland | |
| New SVE, Inc. | Illinois | |
| Ostersjons Reklamradio AB | Sweden | |
| Otrkytie TV OOO (f/k/a Discovery Communications OOO) | Russia | |
| Patagonia Adventures, LLC | Delaware | |
| Radio City AB | Sweden | |
| Radio Daltid SBS AB | Sweden | |
| Radio License Startup Halland AB | Sweden | |
| Radio License Startup Orebro AB | Sweden | |
| Radio License Startup Vasteras AB | Sweden | |
| Radio Match AB | Sweden | |
| Radio Nova A/S | Denmark | |
| Radiobranschen RAB AB | Sweden | |
| Radiotveckling I Sverige KB | Sweden | |
| RIS Vinyl Skane AB | Sweden | |
| Rockklassiker Sverige AB | Sweden | |
| Run-of-Shows, LLC | Delaware | |
| S7ories Limited | UK | |
| SBS Discovery Media ApS | Denmark | |
| SBS Discovery Media Holding ApS | Denmark | |
| SBS Discovery Media Sweden Holding AB | Sweden | |
| SBS Discovery Radio AB | Sweden | |
| SBS Discovery Radio ApS | Denmark | |
| SBS Discovery Radio Sweden Holding AB | Sweden | |
| SBS Discovery TV AB | Sweden | |
| SBS Discovery TV Oy | Finland | |
| SBS Radio ApS | Denmark | |
| SBS Radio HNV AB | Sweden | |
| SBS Radio Sweden AB | Sweden | |
| Setanta Sports Asia Limited | Ireland | |
| SRU Svensk Radiotveckling AB | Sweden | |
| Svensk Radiotveckling KB | Sweden | |
| Takhayal Art Production JSC | Egypt | |
| Takhayal Entertainment FZ LLC | Dubai | |
| Takhayal Television FZ LLC | Dubai | |
| The Audio Visual Group, Inc. | California | |
| The Living Channel New Zealand Limited | New Zealand | |
| Travel Daily News, Inc. | Delaware | |
| Turmeric Vision Private Limited | India | |
| Turner Info and Lifestyle | Russia | |
| Turner Kids OOO | Russia | |
| Value Proposition Publishing, LLC | Delaware | |
| Vinyl AB | Sweden | |