For now, the paid site will mostly be the same service as the current, ad-supported version of YouTube. There will be some extra features like the ability to download videos so subscribers can watch them offline. Subscribers can also watch the videos while they are using other applications like email.

And starting next year, creators will begin adding extra context — YouTube Originals — that will over time create a two-tiered system where fans can pay for the extra content.

On Wednesday, YouTube announced a handful of new productions, including “Scare PewDiePie,” a reality series made by Maker Studios and the producers of “The Walking Dead,” the popular television show about a zombie apocalypse. The series will star PewDiePie, a Swedish YouTube star whose real name is Felix Kjellberg, and show him encountering “terrifying situations inspired by his favorite video games.”

In addition to YouTube originals, the service will include a roster of programming from big media companies like 21st Century Fox, NBCUniversal and Time Warner that are already on the ad-supported version of YouTube. The media companies will get about 55 percent of the revenue from the service, said executives with knowledge of the terms.

Some media executives, who spoke on the condition of anonymity, said they felt pressured to participate in the new service. The executives said YouTube had implied that if they didn’t provide content for subscribers, there was a chance their ad-supported content would not be available on YouTube in the United States.

“We’ve made a lot of progress and have worked closely and collaboratively with our creators large and small,” said a YouTube spokesman in an emailed statement. “It is precisely because of this work that we have the signed agreements with the overwhelming majority of our partners, representing over 98 percent of the content watched on YouTube. We look forward to continuing this work for YouTube Red.”