My point is tech advancements occur and will continue to occur - So why would the CBC, CTV, Global place money in and maintaining OTA transmission towers when Digital Satellite transmission is far easilier and and cheaper to maintain and easier to deliver to all canadians ?
The deal is those satellite feeds do not belong to the respective stations or networks, but are the private property of the pay TV service transmitting them. That fact is the basis of jrose's concerns, and to a certain degree mine (I too would like to receive Canadian network stations for free on satellite, quite possibly in HD, but I know the facts of the matter).
For things to change, the broadcasters need to take over the satellite distribution of their stations, and come up with a reasonable scheme to make them available on the same or similar basis they would as if they were terrestrial broadcasting.
As to why to keep or even improve the terrestrial broadcast network, they'd do that keep viewers that don't want to pay for satellite or cable, and and possibly keep Canadians from viewing US OTA in HD, not to mention maintaining a system for the sake of simsubs.
Second there was a time when TV stations delivered programming and generated their revenue from the commercials that were on their stations ? This has not changed - just the way that signal is delivered has changed or has not changed.
It has not changed at all. The broadcast stations are still there to receive by antenna, for free.
If you are receiving your broadcast stations from a pay TV service, you are essentially receiving a private redistribution from that pay TV provider, not a public broadcast belonging to the broadcaster.