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This one took time to install on my iPhone and iMac.
It went faster on the Apple TV. Still have to do the iPad.
I only noticed it recently, after the last iOS update. When connecting to the video library in iTunes on my iMac using the TV app on my iPad, I once again get feedback that tells me something is happening.
The wait for a connection and the start of a stream also seems shorter. That may be simply because of the feedback, however.