The whole thing is very confusing, and it’s not clear why it’s just 20th Television without the ‘Century’. We guess rebranding is hard.
Disney Television Studios now comprises ABC Signature, 20th Television, and Touchstone Television, the latter renamed from Fox 21 Television Studios.
All you really need to know is Disney owns a lot of TV studios now and is happily distancing itself from the Fox brand. It’s likely to avoid confusion with the remaining Fox brands such as Fox News, the ever-divisive power in American current affairs reporting.