Mediacom has at least two examples of these in west central Illinois involving the Peoria/Bloomington and Quad Cities (Davenport/Rock Island/Moline) markets:
Elmwood, Yates City, Farmington, Glasford, Hanna City, London Mills, Smithville, Fairview, Dunfermline & St. David (in Peoria, Knox, and Fulton counties). Most of these towns are in Peoria or Fulton counties and hence in the Peoria DMA, but Yates City is in southeastern Knox County (Quad Cities DMA) while London Mills straddles the Knox/Fulton county line. But the only Quad City channel that is offered on that lineup is KLJB-18 Davenport (Fox), while only the Peoria stations are in HD. Even while Yates City satellite viewers get the QC locals and have to rely on cable or antenna for the Peoria stations. [However, I grew up near that area and although I can't vouch this with certainty, it is possible that the Elmwood and Yates City parts of this system may have also had WQAD-8 Moline (ABC) on cable around the mid-80s, while the remaining QC stations have and continue to be received with a good antenna in much of this cable system's territory].
http://www.mediacomtoday-lineup.com/lineup/444/elmwood_yates_city_farmington_glasford_hanna_c.aspx
Brimfield, Bureau, Dunlap, Granville, Hennepin, Mark, Oak Park Estates, Princeville & Standard (Peoria, Marshall, Putnam and Bureau counties). The small town of Bureau is the only community who gets this lineup that is NOT in the Peoria DMA (they're in Bureau County, IL which is part of the Quad Cities DMA), yet only Peoria stations are offered. Plus Putnam County, IL is next door to LaSalle, IL, the COL for TBN O&O WWTO, yet they get their TBN from satellite rather than OTA on cable.
http://www.mediacomtoday-lineup.com/lineup/229/brimfield_bureau_dunlap_granville_hennepin_ma.aspx