I had a service call recently to upgrade my system to 4K. I asked the installer to put in a new dish as my existing one was 10 years old and I figured why not get a new shiny dish. The installer recommended against it as he said the new dish is slightly smaller as it only has to view three satellites without the 110 and 119 and keeping the old dish ensures high signal strength. I hadn't read anything on the board about a new dish but since it was a marginal request at best I agreed to leave the existing dish in place with a new 22 channel LNB added. Was he correct - is the new dish smaller - or was he just trying to reduce his workload? Incidently after the installation of the new LNB I have noticed a definite increase in signal strength when I do a satellite signal test. Does the new LNB have an enhanced sensitivity to increase signal strength?