Apple has added support for searching Spike, Nickoledeon,, and Nick. Jr. to the fourth-generation Apple TV’s Universal Search feature, allowing users to call up results from these channels in Siri or by typing queries into the built-in tvOS Search app. A new set of services have also been brought into the fold of Apple’s “TV” app, including Crackle, FilmStruck, and Freeform (the Disney/ABC channel formerly known as ABC Family).…