New to using Apple TV and edd some hints and help

hi,
I've just set up my Apple TV, and have a few questions.
When you are showing a movie off your Mac through Apple TV does it use up any data?
How much data does it generally use?
and anything else that I shod know would be very helpful.
Thank you

When playing video purchased or home video added to itunes, the video stream traverses your local network only and does not involve the internet so should not cost anything to play -note you must be accessing video under Computers>your iTunes>Movies etc not using the top level Movies/TV ions which play prior purchases from the cloud.
An internet connection is needed by AppleTV 2 and 3 to play protected content as they need to be able to authorise - I don't know how much data this uses but tit should be minimal, no more than sending a simple email or two, if that.
If you buy your video from iTunes, then the movie and TV show sizes listed there will give a good representation of data needed to download or rent from the internet in the first place (either to AppleTV or to keep in itunes).
SD movie are around 1GB, 720p HD 3-5GB (720p) and 1080p HD 4-6 GB or so.  The largest movie I've seen is Spartacus in HD which I've not bought but is listed as over 8GB.
If you have a monthly internet quota which is low, you may be better off renting in itunes than directly on AppleTV - as AppleTV has no storage it can often redownload the video from the start if you watch a rental more than once or don't watch it straight through.
AC

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