While the standard advice is to run the absolute newest release of a software program, several distinct technical scenarios make iTunes 12.5.5.5 a critical requirement for specific setups:

When he launched it, the interface was wrong. It was a hybrid: the brushed metal of iTunes 4, the playlist tabs of iTunes 7, the Cover Flow of iTunes 9, and a sidebar that listed things no music software should list. Folders named "Unheard Melodies," "Deleted Demos," "Voicemails from the Dying," and one simply labeled "Him."

Fixes:

Alternatively, you can download the 64-bit installer from trusted software repositories that focus on maintaining older, stable Apple software. Conclusion

The TV app hub (for movies and TV shows) was added in iTunes 12.5, so yes, 12.5.5.5 includes it.

: Many third-party synchronization tools, peripheral plugins, and old device managers (such as BlackBerry Link) rely specifically on the driver hooks present in the iTunes 12.5.5 framework to establish data bridges. Modern versions break these dependencies. System Requirements for iTunes 12.5.5.5 (64-bit)

This update arrived during a transitional period for the software, bridging the gap between iTunes as a monolithic media manager and Apple's future, more focused apps.