Don't tell your friend about a hilltop neighborhood in Bowling Green, KY. Homeowners in that neighborhood with rotators on their antennas can watch stations from Nashville, TN, Louisville, KY, Paducah, KY, and Evansville, IN.
Or the northwest side of Peoria, IL, and nearly all of Peoria County too--which gets at least a Grade B signal from nearly all Quad Cities stations too. Not just in the digital age, but even in the analog era too. That's right, Big 3 networks in their VHF glory pre-2009 invading a "UHF island." I think your friend would fly off the handle if he lived in the towns of Princeville, Dunlap, and Brimfield in northwestern Peoria County, plus all of Stark County to the north--and possibly even in an apartment in far northwest Peoria, and had an outdoor antenna or even some cheap indoor antennas, wondering where all these weird 6, 8, 18, etc. channels came from.
Even far northwestern Peoria County can get Grade A coverage from some of the QC stations, traditionally WQAD (RF 38/virtual 8) and post-transition KWQC (RF 36/virtual 6), since all but WHBF transmit from Orion, IL (20 miles southeast of the Quad Cities). The only exception is WHBF (CBS) (RF 4/virtual 4), which still transmits from Bettendorf, IA, but still gets a Grade B low-V signal to Peoria. Ironically, WHBF used to transmit from Orion until about 1983.
I've never heard, but anyone know if the Peoria UHF's ever raised serious holy hell about some of their Quad Cities counterparts transmitting from Orion? Thus getting a Grade B signal to the city limits of Peoria.
I wonder if back in the day one could make a case for a DMA merger of Peoria and the Quad Cities--perhaps if Peoria was able to get one of their stations on pre-freeze, or if they were successfully able to keep the original channel 8 allocation in Peoria rather than it being moved to Moline for WQAD. There's similar distance between the Quad Cities and Peoria as there is between Champaign and Springfield to the southeast in central Illinois--and they have the Champaign-Decatur-Springfield DMA.