Talk:Digital terrestrial television in Canada

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Following this article, and list of tv channels, I experimented with setting up my ATSC TV to tune in digital channels. I found that when you tune to the "real" digital channel, say 20.1 for CBC Toronto, the television displays a different channel, 5. It appears that the broadcasts identify themselves with the analog-side channel in the local area, CBLT analog is on channel 5. Is this common to all digital TV's, or just my set? If this is common to all televisions, it seems some clarifying text would be helpful, especially in the list of stations article. Maury Markowitz (talk) 16:59, 7 March 2009 (UTC)

The use of a virtual channel numbering scheme is part of the ATSC standard; for most digital stations, this will mean that their (former) analogue channel numbers appear in their logos, subchannel numbering, product branding and identification long after they've gone digital-only and abandoned these frequencies. WWTI, for instance, is prone to filling the vacant space in any pillarboxed video with a dozen "abc 50" logos, even though digitally they're on UHF DT21 and their former UHF 50 frequency is now vacant here.
Perhaps there's some explanation in one of the existing articles which you could re-use? -- (talk) 15:27, 21 July 2010 (UTC)


(moved from 'History' section of article, not sure if this should be re-inserted somewhere else)

With the -TV suffix and callsign usage beginning to be more uncommon for usage in Canada (for example, CFTO-TV is IDed as CTV Toronto), it is likely for the -TV suffix to be discontinued on Canadian TV stations (especially CBC and Radio-Canada stations) during the transition and continue usage of the -DT suffix on digital stations. This was a similarity for U.S. TV stations continuing to use the -TV suffix on some stations after the digital transition and discontinuing the -DT suffix for good. However, some American TV stations use the -DT suffix (e.g. the Univision stations). [citation needed]

What exactly is the criteria for change-over to digital TV ?[edit]

What exactly is the criteria that requires a local TV market to change over to ATSC (digital) broadcasting?

London Ontario, for example, is served by only 1 TV station that "originates" local content, yet it is listed as one of the markets that must switch to ATSC broadcasting in August 2011. Can anyone explain why? —Preceding unsigned comment added by (talk) 20:41, 22 December 2010 (UTC)

London is a market with over 300,000 people, so therefore all stations in the London market must transition to digital.  єmarsee Speak up! 00:14, 23 December 2010 (UTC)

I believe the criteria were any of over-300000 population, more than one local originating station or a provincial capital are mandatory markets.

TVO and digital subchannel numbering[edit]

"TVOntario had to relocate three transmitters, in Chatham, ON, Belleville, ON, and Cloyne, ON to lower channels because they were on channels above 52, which had to be vacated by August 31, 2011. In addition to relocating these transmitters to lower channels, the transmitters have been converted to digital but are currently not broadcasting HDTV nor an on-screen PSIP programme guide."

I note that the tables had these with channel numbering like "CICO-DT-53 UHF 26 (53.1 TVO)". What I've actually been seeing (when the signal comes in, which is rare as these are 15kW digital LPTV's) is that that's "RF 26.1" with no other PSIP info. I've changed Belleville to reflect the "26.1" but have left the others alone for lack of any way to verify that the other two are following this same pattern. -- (talk) 20:32, 5 February 2012 (UTC)

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