冬季奥运的工程考验

简介：　　《圆环（美国版）》第2季重磅回归，本季共13集，比上一季更加一波三折，暗潮汹涌！八名新人加入《圆环》，他们将在一个独特的社交媒体平台上互相搭讪、交友、惹恼别人，并在挑战中相互较劲，最终人气最旺的参赛者将获得现金大奖。在争夺10万美元的过程中，他们能否赢得影响力并弄清楚谁是真货，谁又在演戏？不容错过的社交媒体竞赛节目《圆环（美国版）》为期四周，于4月14日上线，并在4月21日、28日更新，在5月5日播出本季大结局。

简介：　　第64届欧洲歌唱大赛由上届冠军以色列承办，具体举办地为以色列首都特拉维夫。本届大赛共有41个国家参赛，将于5月14、16日进行两场半决赛，18日进行总决赛。

简介：　　ComedianChristinaPexaminesthejoysanddragsofparenting,partneringandmorethroughano-nonsenseGen-Xlensinthisspecial.

简介：　　

简介：　　

简介：　　西格妮·韦弗将担任国家地理4集纪录剧集《鲸鱼的秘密》(SecretsoftheWhales，暂译)旁白。詹姆斯·卡梅隆担任该剧执行制作人。该剧将记录鲸鱼的生活方式，及它们在不断变化的海洋中所面临的挑战。该剧将于2021年4月22日地球日播出。

简介：　　1"South Island"July 18, 2011　　Bear Grylls must fling himself out of a plane and parachute to safety to reach this remote area. Crossing the country's highest mountain range and starting a fire in a waterlogged forest are just some of the unpredictable things he faces in this terrain.　　2"Fire And Ice"July 25, 2011　　Bear Grylls is dropped on an ice cap covering an active volcano. In blizzard conditions he struggles to make headway, and the barren land offers little food. Can he reach civilization when faced with swollen river crossings and ever present flash floods?　　3"Red Rock Country"    August 12, 2011　　Bear Grylls is in red rock country - southern Utah. Armed only with a lasso, he descends a rock pinnacle and gets trapped in a narrow gorge. Crossing an arid wilderness, he's left hanging 100 ft above a ravine. And Bear's craziest airplane stunt ever!　　4"Land of The Maori"August 19, 2011　　Over 100 people drown each year in New Zealand, and Bear must cross a raging river on a tree trunk to head toward civilization. On his journey to safety he runs out of water, is forced to climb up active volcanic ranges and scale down a waterfall.　　5"Working the Wild"November 29, 2011　　Bear Grylls takes the viewer behind the scenes to meet the crew that follows his every step. Whether he's jumping from helicopters or eating the unimaginable, the camera is never far away from the action. Now the crew gets to tell their side of the story.

简介：　　共三集：1.隐匿的王道2.生命中的化合3.生命的火花　　TheCellInathree-partseries,DrAdamRutherfordtellstheextraordinarystoryofthescientificquesttodiscoverthesecretsofthecellandoflifeitself.Everylivingthingismadeofcells,microscopicbuildingblocksofalmostunimaginablepowerandcomplexity.“Iamnormallynotaloverofscientificdocu’sbutthisoneIfoundIhadtowatchall3partsbacktoback”.　　TheHiddenKingdom　　Thefirstpartexploreshowcenturiesofscientificandreligiousdogmawereoverturnedbytheearliestdiscoveriesoftheexistenceofcells,andhowscientistscametorealizethattherewas,literally,moretolifethanmeetstheeye.　　TheChemistryofLife　　Thisepisodeexploreshowscientistsdelvedeverdeeperintotheworldofthecell,seekingtorevealthemagicingredientthatcansparkabundleofchemicalsintolife.Theirdiscoverieshavebroughtustothebrinkofbeingabletocreatelifeforourselves.　　TheSparkofLife　　Thefinalpartrevealshowourknowledgeofcellshasbroughtustothebrinkofoneofthemostimportantmomentsinhistory.Scientistsareclosetorepeatingwhathashappenedonlyonceinfourbillionyears-thecreationofanewlifeform.

简介：　　这部单口喜剧特辑由帕顿·奥斯瓦尔特自导自演，在台上随兴畅聊上了年纪的坏处、失败的居家隔离规划，以及太太变成女武神的那一天。

简介：　　1.BokoHaramUnnaturalSelection:TheNigeriangovernmentisdeterminedtodrivemilitantsfromaterroristgroupoutofthecountryAnewgene-editingmethodallowscientiststochangethegenetictraitsofplantsandanimals.　　2.EscapetoEuropeCycleofTerror:FollowingtherefugeetrailfromtheSyrianbordertoEuropeTheglobalreactiontotheterroristattackinParisimpactsthefightagainstterrorism.　　3.RighttoDie:Exploringthemoral,politicalandpersonalquestionsraisedbyeuthanasia.　　4.BeatingBlindnessWhiteCollarWeed:DoctorsandresearchersmakeincrediblestridesinthefightagainstblindnessStrugglingsmall-scalemarijuanafarmersfacecorporatetakeoversastheendofthepot-prohibitionnears　　5.MeathookedEndofWater:ExaminingtheenvironmentalharmofindustrialmeatoperationsAssessingthedepthsoftheworld&#39swatercrisis.　　6.ReturntoYemenChurchandStates:ExaminingtheconflictinYemenExploringtheongoingbattleforLGBTequalrightsintheUnitedStates.　　7.PalestineNowandVivaCubaLibre:ExploringthelivesofyoungPalestinianstodayExaminingthepoliticalthawingofrelationshipsbetweenCubaandtheUnitedStates.　　8.AfghanWomen&#39sRightsFloatingArmories:ViolenceandoppressionarestillafactoflifeforwomeninAfghanistanPrivatemilitarycontractorsprotectglobalcommerce.　　9.TheFutureofEnergy:Examiningthefutureofhowtomakeanduseenergyandhowtomeetthegrowingdemandascarbonemissionsarecut.　　10.TrumpinDubaiChinainAfrica:TheplightofmigrantworkersinDubaiExaminingtheincreasinglyprominentbusinessrelationshipbetweenChinaandAfrica.　　11.TheDealCityofLostChildren:ExploringtherecentIrandealfrombothsidesTribesofhomelesschildrenlivealongthetracksinKolkata,India.　　12.TheEndofPolioandCollateralDamage:HealthworkersputtheirlivesonthelineinPakistantoeradicatepolioExaminingthedevastatingeffectsofunexplodedordnanceinMyanmarandLaos.　　13.StateofSurveillance:ShanetravelstoMoscowtomeetwithEdwardSnowdenanddiscussgovernmentsurveillanceprograms.　　14.HeroinCrisisNewAgeofNukes:TheeffectsofAmerica&#39sHeroinepidemicandthenextnucleararmsrace.　　15.FlintWaterCrisisLibyaontheBrink:ExaminingtheeffectsofthewatercrisisinFlint,Mich.InLibya,rivalmilitiasfighttosavethecountry.　　16.DieTrying:PatientsandtopresearchersacrosstheU.S.discussrecentmeasurestakentotackleALSExploringtheregulatoryhurdlesfacedbyALSpatientsanddrugmakers.　　17.StudentDebtFecalMedicine:Thecorrelationbetweenstudent-loanborrowingandthesoaringcostofcollegetuitionAmedicalrevolutioninvolvesusingstoolfromahealthypersontotreatsevereintestinalinfectionsinothers.　　18.TheNew$paceRaceClosingGitmo:NASAandagrowingcommunityofprivatecompaniesdecidetoprepareforMarsexplorationEx-detaineesrevealwhatreallyhappensbehindthewallsoftheAmericanprisonatGuantanamoBay,Cuba.

简介：无论是外星人的存在，死后有来生的可能性或目击奇异生物，人类对于未知的事总难以抗拒。本系列节目利用最新科技调查这些怪异事件，究竟流言和惊人现象仅属错觉，还是真有其事。大脚传说--他有多个名字：萨斯夸奇、野人、大脚。但在缺乏化石证据、骨骸或尸体的情况下，没有几位科学家愿意拿名声为可能只是骗局的东西作担保。我们有什么证据可证明大脚真的存在？有一组科学家和调查人员将评估最有力的相关证据，厘清何谓科学，何谓科幻小说。再来，他们要根据最有力的证据，制作大脚的拟真模型。

简介：　　FORGEDINFIREfeaturesworld-classbladesmithscompetingagainsteachothertocreatesomeofthemosticonicedgedweaponsfromhistory.Ineachepisode,fourofthebestbladesmithsinthecountrywillcometogethertoputboththeirskillsandreputationsontheline.WhethertheyaremakingaJapanesekatana,amedievalbroadsword,oranancientthrowingbladelikethechakram,theweaponstheyforgewillbefullyfunctionalandlethalworksofartandwar.Theuniquehistoriescontainedwithineachweaponwillbecreativelytoldduringtheforgingprocessandthefinalweaponsthemselveswillbeassessedandruthlesslytestedbyourpanelofexpertjudges.Thesedynamicandexplosivetestswillbeindividuallydesignedtopushtheweaponstotheirabsolutelimit.Onebyone,thebladesmithswillbeeliminateduntilonlyoneremainstobecrownedthechampion.