I want to know the answer to the following question:
On what date were CBC's remaining analogue transmitters shut down?
All the background I'm provided with is that "On July 17, 2012, the CRTC approved the shut down of CBC's analogue transmitters, noting that "while the Commission has the discretion to refuse to revoke broadcasting licences, even on application from a licensee, it cannot direct the CBC or any other broadcaster to continue to operate its stations and transmitters."". Is that enough to answer the question?