For Example lets say I have DVR1, 2, 3 each with Channel A, B, C. They all connect to a Central Station in a datacenter somewhere. 
  
Then I have viewers 
  
Viewer I (Los Angeles): 
  
1A, 1C, 2B, 3A 
  
Viewer II (San Francisco): 
  
1A, 1B, 2A, 2C, 3A, 3B 
  
Etc...Is this possible? Each Viewer would connect directly to Central Stations such that DVR1, 2, 3 only would have to send one upstream video. 
  
Thanks!