Possible to AirPlay/Home Sharing to another computer?

hey guys,

i'm wondering if it's possible use airplay computer using itunes show video (via airplay) apple tv , computer using multiple speakers option. option have itunes streaming video multiple apple tvs.

ideally, i'd have itunes showing/playing synchronized media on 2 floors. if possible, easier using 1 computer, single apple tv, , computer, have resources use single computer , 2 apple tvs.

has attempted this?

 

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