IPTV stands for Internet Protocol Television. The name describes the delivery mechanism rather than the content. Traditional cable sends every channel down a coaxial line simultaneously and your set-top box tunes to one of them. Satellite does the same thing through a dish. IPTV sends only the channel you asked for, as a video stream, over the same internet connection you already use for everything else.
This is not an exotic technology. Every mainstream subscription streaming service, and the catch-up apps run by the major Canadian broadcasters, all work exactly this way. The difference between those services and an IPTV subscription is not the plumbing, it is the catalogue and the fact that IPTV carries live linear channels with a programme guide rather than only on-demand files.
Practically, this means three things for you. There is no installation appointment, because there is nothing to install in your walls. There is no equipment rental, because your existing device is the receiver. And there is no regional limitation on what you can receive, because the stream travels the same route as any other web traffic.