I don't have HR20's. Just HR10-250's. But, I'm doing some preliminary research as Directv is forcing my hand with the future MPEG4-based HD rollout. I see lots of familiar names from the tivocommunity forum, and the information posted here is excellent. I couldn't find the answer to this sifting through all the information about connecting to PC/Mac content. But, I'm assuming since I didn't see this in a thread, that networked HR20's don't see each other on a network and share their content? Thanks!