Network speed for HD

So far I have managed to stream content from a Bluray disc to a powerline network connected PC.

The client computer is using a 46" 1080p TV, and as such can be seen to be HD. The majority of my media is of a far less technical specification but never-the-less some of it can be considered HD.

The streaming of this media is not only acceptable using 85Mb/sec powerline adapters in some cases wireless-g connections are sufficient. Only the BD quality signal seems to require the 200Mb/sec adapter connection.
No additional or special filtering has been used in this media network.

To answer the question "how far do you need to have for HD" is "it depends". It depends on what you are trying to stream and what your definition of HD is.

Like most of us who are likely to be experimenting in this technology your sources of media is likely to be that from previously streamed material. This media is also likely to have been distributed using a broadband network with a transmission rate of far less than 200Mb/sec - this makes the requirement for this speed only necessary for programs that are taken from BD sources locally on your network.