Last year, when Disney+ was spending big to promote “Doctor Who” on the New York subway, an advertising campaign wrapped trains with images of the incoming Doctor, Ncuti Gatwa, and his time traveling police box, the TARDIS.

“Your cosmic joyride awaits,” the train wrapper read, and Gatwa’s hand stretched out to invite prospective viewers — many of whom would likely be new to the show — to join him.

The BBC had been making “Doctor Who” since the 1960s, and it had been shown in the United States on BBC America and HBO Max in recent years. When Disney+ came onboard as a distribution partner and co-producer in 2023, it pumped up the budget for the show, whose special effects had become painfully outdated, and brought it to a wider audience in the U.S.

This revamped “Doctor Who” returns for a new season on Friday, with Gatwa once more playing a modern kind of Doctor, who is in touch with his feelings. The Welsh screenwriter Russell T Davies, who also oversaw an earlier revamp in 2005, is also back again, as the showrunner.

Like last season, the episodes will be available simultaneously for British viewers on the BBC’s streaming service, iPlayer, and on Disney+ for the rest of the world. This time around, that drop has been pushed back by eight hours, so that new episodes land at 3 a.m. Eastern time — perhaps in response to complaints from British fans, who had to stay up until midnight last season to watch it online. Britons who prefer to see a TV broadcast of “Doctor Who” (a Saturday night BBC staple) will have to avoid social media for a day if they want to avoid spoilers.