Programa de TV animado da 2000 onde adolescentes podem entrar fisicamente em um mundo virtual

Também poderia ser Código Lyoko

Foi executado do 2003 ao 2007.

Jeremy Belpois, a 12-year-old prodigy attending boarding school at Kadic Academy, discovers a quantum supercomputer in an abandoned factory near his school. Upon activating it, he discovers a virtual world called Lyoko with an artificially intelligent girl named Aelita trapped inside it. Jeremy learns of X.A.N.A., a fully autonomous, malevolent, and highly intelligent multi-agent system, that also dwells within the Supercomputer. Using Lyoko's power, X.A.N.A is able to possess electronics and machinery (and later, people) in the real world to wreak havoc. X.A.N.A.'s primary objective is to eliminate anyone who's aware of the supercomputer's existence, so that it will be free to conquer the real world and enslave all human beings.

Jeremy works tirelessly to materialize Aelita into the real world and stop attacks caused by X.A.N.A. Jeremy is aided by his three friends Odd Della Robbia, Ulrich Stern, and Yumi Ishiyama, who are virtualized into Lyoko in order to save both worlds from the sinister virtual entity. They achieve this by escorting Aelita to various towers on Lyoko, which serve as interface terminals between Lyoko and Earth, and having her deactivate the one that X.A.N.A. is using to access the real world. Once the tower is deactivated, Jeremy is able to launch a "Return to the Past" program, which sends anyone scanned into the Supercomputer's memory back in time, whilst retaining memory of the other timeline, to undo any damage caused by X.A.N.A. (the only exception of this are any deaths caused by the attack, which would carry over even with the time reversion). In "Code: Earth," Aelita is finally materialized, but the group discovers that X.A.N.A. had planted a virus inside of her that will kill her if the Supercomputer is deactivated. They realize that they cannot destroy X.A.N.A. completely, or Aelita will be destroyed along with it.

Veja aqui se ele toca algum sinal:

A outra resposta possível "As verdadeiras aventuras de Johny Quest"mas foi de agosto de 26, 1996 a abril de 16, 1997.

Você não disse que era especificamente o Anime (talvez você queira editar sua postagem). Pode ser um tiro no escuro, mas se foi transmitido em público, soa um pouco como Cyber ​​Chase. Os personagens foram atraídos para o mundo cibernético e, no final de cada episódio, você veria os personagens da vida real fazendo coisas na escola, no trabalho etc.

Como eu disse, parece improvável, mas corresponde à sua descrição.

Pode ser o show de Anime .hack // Assinar (Episódios 2002, 26) ou possivelmente um dos outros programas no franquia dot-hack.

Da página da Wikipedia em .hack // Assinar:

The series is set in a fictional 2009, introducing a computer virus called Pluto's Kiss as the cause of a massive Internet shutdown. [...] Two years later free access to the networks recovers, bringing with it the release of The World: the first online game since Pluto's Kiss, developed for Altimit OS. The World is portrayed as a fantasy setting wherein player characters can be different classes, adventure by themselves to go searching through dungeons or join with others and form parties, fight monsters and level up, collect new items and participate in special events. At the center of each server is a Root Town, which contain shops, a save point, and the Chaos Gate that players use to travel between servers in the game.

Penso que a cidade raiz pode ser a "área central onde todos os jogadores se conheceram no mundo virtual" que você descreve.

O protagonista principal é um garoto chamado Tsusaka:

Tsukasa is mind-trapped into the game. Despite being a "fantasy quest type adventure", it does not rely on action sequences. The series is driven by mystery, slowly revealing secrets to viewers while hearing to individual characters Questions for Tsukasa in the real world serve as deriving actions Tsukasa hears Morganna and discovers Aura in the form of a girl. One of the characters plan to help and have ulterior motives. More questions arise for anyone what will happen in the game. All the while he is seen struggling with his increasingly dire situation, and his own social and emotional shortcomings. Although Tsukasa is isolated, he begins a relationship with Subaru, a kind and thoughtful female Heavy Axeman. The series follows the Key of the Twilight (黄昏の鍵 Tasogare no Kagi), a legendary item rumored to have the ability to bypass the system in The World. Some characters take it to gain the power it confers. Others believe it, even Tsukasa finds a way to log out. Despite their reasons for seeking it, everyone agrees that it is related to him in some way, as he is also a factor bypassing the system in the game. His catatonic state adds a sense of urgency.

Poderia ser Caótico?

Chaotic tells the tale of a teenage boy named Tom and his friend Kaz. They both play the Chaotic Trading Card/Online Game. Kaz always tries to tell Tom about a secret code to play for real which Tom refuses to believe. While playing online Tom receives the special password. When he enters the password into his game scanner he is transported to a place called Chaotic that is able to take him to another world where the characters, locations and items in the card game came to life.

There are two parts to the Chaotic world, Chaotic itself and Perim. Chaotic is where the people play an advanced version of the card/online game where they transform into the creatures. The games can be watched via monitor by other players.

The second part is Perim. In Perim the creatures, locations and items from the game are real. Players from the Chaotic game can teleport into Perim and scan the locations, creatures and items with their scanners, gaining the ability to use them in their game. There are four tribes in Perim. Two tribes, the Overworld and the Underworld, have been at war over a great power called the Cothica. Despite their names, there is no definite Good and evil tribe, as both have different stories and interpretations of how the war began, with each tribe seeing the other as being evil. The Danians and Mipedians have since joined the war, turning it into a four-way conflict over the Cothica. It is said that the Mipedians were once united with the Overworlders and the Danians united with the Underworlders. It is still unknown why they separated

É um dos recursos no Orlando Kids. Ele tem dois outros mundos, acessíveis por um dispositivo que o personagem principal adquire de seu amigo (bem, ele já possuía o dispositivo, mas conseguiu o código de Kaz). Eles são adolescentes. Chaotic tem um teletransporte para Perim. Existem robôs no Caotic.

E, de fato, seus corpos permanecem na Terra:

When the players are in Chaotic/Perim they exist simultaneously on Earth. When a Chaotic player leaves Chaotic they become one person again and the Earth version of the player gains the memories of anything they experienced in the Chaotic/Perim world. This is awkward the first time they transport, as their online deck is blocked so that their Chaotic self can use it and their scanner becomes non functional, causing many people to believe they have broken their scanners until they are re-united with their Chaotic self.

Primeiro episódio:

Meio que parece que poderia ser Digimon Adventure.

Wikipedia:

On August 1, 1999, seven children are transported into the Digital World by Digivices that appeared before them at summer camp, where they befriend several Digimon (Digital Monsters). The kids' Digivices allow their partner Digimon to Digivolve into stronger forms and combat enemies. As the kids explore to find a way home, they learn that they are "DigiDestined", children chosen to save the Digital World.