Context: CBC Television stations can be received in many United States communities along the Canadian border over-the-air and have a significant audience in those areas. Such a phenomenon can also take place within Great Lakes communities such as Ashtabula, Ohio, which received programming from the CBC's London, Ontario, transmitter, based upon prevailing atmospheric conditions over Lake Erie. As of September 2010 CBC shut down its analogue transmitter and decided not to replace it with a digital transmitter. As a result, there is now a giant hole in the coverage of CBC in South-Western Ontario. Both CBC - Toronto and CBC - Windsor are both over 100 miles from London, ON and out of range for even the largest antennas[citation needed].

Question: When did CBC shut down its analogue transmitter?
Answer: September 2010

Question: Which CBC location has a lapsed area of coverage after 2010?
Answer: South-Western Ontario

Question: Which US city can receive broadcasts from CBC's London transmitter?
Answer: Ashtabula, Ohio

Question: What location in the United States has the highest viewership of CBC programming?
Answer: Unanswerable

Question: What has caused the ratings of the CBC to lapse since September 2010?
Answer: Unanswerable

Question: Economic conditions and societal inequality has caused the CBC to ignore this problem?
Answer: Unanswerable

Question: What is the maximum distance that a city can be from a transmission antenna?
Answer: Unanswerable