HD programming in DC suburbs - XFinity

I live in Davidsonville, MD, 15 miles from downtown DC and 30 miles from downtown Baltimore. Comcast is forcing me to be local to Baltimore and is refusing to provide High Def channels for the NBC, ABC and CBS channels that are based in Washington DC. I pay for the "SPORTS" channels on my Comcast bill, and I also pay for the "HD" channels. Today, 10/2/16, the Redskins are playing the Browns and I cannot get a High Def brodcast anywhere on the Comcast channels available to me. I think this is criminal. I believe Comcast is guilty of failure to deliver and I will take this up with the PUC and the FCC.