Context: On March 5, 2005, CBC Television launched a high definition simulcast of its Toronto (CBLT-DT) and Montreal (CBMT-DT) stations. Since that time, the network has also launched HD simulcasts in Vancouver (CBUT-DT), Ottawa (CBOT-DT), Edmonton (CBXT-DT), Calgary (CBRT-DT), Halifax (CBHT-DT), Windsor, (CBET-DT), Winnipeg (CBWT-DT) and St. John's (CBNT-DT). CBC HD is available nationally via satellite and on digital cable as well as for free over-the-air using a regular TV antenna and a digital tuner (included in most new television sets) on the following channels:

Question: What stations did CBC broadcast in HD in 2005?
Answer: Toronto (CBLT-DT) and Montreal (CBMT-DT)

Question: Where is CBC available for free?
Answer: over-the-air

Question: What is required to view over-the-air broadcasts?
Answer: a regular TV antenna and a digital tuner

Question: CBC television had to fight the CCA to launch it's station in what 2 cities in 2005?
Answer: Unanswerable

Question: One of the advantages the CBC has over competitors is the ability to broadcast in this British Columbia city?
Answer: Unanswerable

Question: The CCA would not allow the CBC to broadcast unless they allowed this type of viewing?
Answer: Unanswerable

Question: What has helped to make the CBC Canada's most popular station?
Answer: Unanswerable