PRESEASON: I am going to have the same issue this and next week. I am in the Tampa area and they will show the Bucs game locally which means MIa vs TB won't be shown next week. The ATL game is not even on the menu for DTV. I see NFLN is showing other games live. I will probably have to wait on the replay on NFLN to see any of them.
As far as regular season, you should still get CBS games on the ticket as long as they are not shown on your local station. In that case you would need an antenna. I believe the dispute is only for local broadcasts. This will be be a problem for Tampa viewers since they show several Dolphins games locally. I need to call DTV to get my free antenna ASAP.