Someone changed the title of Legends of Tomorrow

Hi Adrian -

To help clarify our policy on these titles, the possessive should never be entered as a part of the primary title. However, in certain cases, where the possessive helps to identify an otherwise ambiguous title, we will allow the possessive title to be added as the (imdb display title) as opposed to the otherwise (complete title). This should only be submitted as (imdb display title) if the possessive title is how the title is commonly referred to in that specific country. You can see further details outlined in our guide under the section "Capitalization and character sets" (look for the information under "Possessives").

So in this case, the USA display title for "DC's Legends of Tomorrow" was added, which is why the title display changed.