Are we talking about locals received from E* or over-the-air with an antenna? LiL pertains to local channels carried by E* (local channels beamed into the same area, or local-into-local). DMA = Designated Market Area, used by the DBS services to determine which local channels you should receive via sat. If you're only 15 miles from Charlotte you are probably (not necessarily) in that DMA. E* carries 10 SD channels from the Charlotte DMA on the E*10 sat. in the 110 slot (8650 to 8661 in the EPG, if you subscribe to them). If you're only 15 miles away then you can probably receive some of these same channels and possibly more with a decent OTA antenna but remember that the ViP211 only has a tuner for the digital channels. All of these are considered "locals". E* provides at least some SD LiL channels to subs in about about 95% of the DMAs.
Distant Network Stations (DNS) pertain to the 5 network channels (ABC, NBC, CBS, PBS, FOX) from 4 large metro markets: NY, Chicago, Denver, and LA when ordered by subs not located in those markets. These channels can be ordered (but the future status with E* is uncertain) by folks in "white" areas, those areas that don't get LiL channels and cannot receive an adequate OTA signal by antenna. The rules are complex and apparently changing. Don't worry about DNSs. You probably won't qualify for them anyway...