we are thinking about upgrading from our dishnetwork receiver 301 i beleive it is.have wondered about the DVR's.But are concerned about all the HD talk. right now we have no interest in the HD,but is it somthing that we should be looking at when upgrading our reiceiver? will HD be somthing everyone will have to have in the near future.or will we get by with just a dvr.Sorry to seem dense,im just trying to learn about all this new equipment coming out