You did write "streaming" so here's the trouble area. To stream the content is packaged up and sent over some network and in doing so introduces a delay. An extreme example where delays are outlandish is at http://www.wired.com/wiredscience/2008/12/speed-of-sound-in-football-stadium/
So be sure to keep your signals wired as packetising and such will cause trouble and get you upset.
If you can't hear the other room then that's not a concern here.
Want to stream TV audio (TV wired to DirecTV)to wired Receiver/amp that controls multi-room wired speakers.
Thought of Sonos Playbar connected to TV (new Samsung smart TV) and then Sonos Connect wired to Receiver (and Sonos Bridge sired to router) as suggested by first Sonos Tech who advised ALL Sonos products can stream. Second call to Sonos tech (to verify) says NO b/c Playbar cannot stream and this will not work. I cannot get definitive answer - I even went to Best Buy two different times and received the same two different answers. Am perplexed.
Anyone doing this with Sonos or with other wireless streaming to drive hard-wired speaker/receiver system? Will a new Samsung smart TV have wireless capability to stream its audio to my receiver?