Roger, it's true that bandwidth is getting pinched at various bottlenecks in the system. I suspect that it has a lot to do with how your bandwidth is delivered. I watch a lot of Netflix and Hulu content, and cannot remember the last time I had a buffer overrun problem. We have a viber optic service which gives me my own connection to the provider's routers, as opposed to most cable arrangements where everyone in the neighborhood shares a connection.
Granted, the streamed content that I watch is not HD, but most content watched by Americans is not HD, so I don't think most of them notice. I also expect that improved compression algorithms (such as H.264) will help us effectively double our capacity or better before long. Even so, I expect that the bottlenecks will get worse before it gets better, especially as more "smart" televisions are sold and people hook them up to watch Netflix. I think it is solveable, but probably not before it gets to the point where more people complain. Ultimately, I expect we'll pay more for the content and for the network connections.
As for the DVR problem, I don't think that there are enough of us who get our content over the air to attract the manufacturers of DVR equipment. I still have the Panasonic unit that has analog tuners that we loved dearly, but I have not found a suitable replacement. Instead, I rolled my own using a computer in the living room and a Hauppauge dual-tuner card. It's not perfect, but it works pretty well.
Alfred

