The existing ATSC 1.0 standard is very good for picture quality on HD channels, and a few TV stations have even switched to more advanced video codecs such as HEVC without actually having to upgrade to ATSC 3.0 (NextGen TV) which comes with "strings attached", namely encoding of the signals with DRM (digital rights management) that's become well-known for breaking compatibility with many ATSC 3.0 enabled tuners. Tyler the Antenna Man; a well-known television technology aficionado even made a video on how this modern retrofit for ATSC 1.0 TV stations works. The subject of the video is a TV station in Eugene, Oregon that uses HEVC to transmit four 2160p ultra HD channels, two 1080p HD channels and eight 720p HD channels on a single multiplex occupying the same 6 MHz bandwidth as any other TV station. Here's a link to the video.
As far as equipment obsolescence is concerned, external tuner boxes with DVR capability that support ATSC 3.0 and numerous "alternative" codecs for ATSC 1.0 are available with more probably in the pipeline. You will be able to avoid having to replace your existing TV by this means. ATSC 3.0 may very well fail to achieve sufficient acceptance based on the issues with DRM encoding and the fact that LG actually dropped the system entirely from their TVs last year. The industry got by just fine with no such usage controls built into the ATSC 1.0 system or even the A/V outputs from cable & satellite boxes, so there's no reason for such countermeasures to be used with ATSC 3.0.
As for Canada, the industry is at such a crossroads that I find it impossible to predict the fate of our traditional broadcast media in general. Our over-the-air broadcast TV landscape may largely die leaving mostly U.S TV stations to fill the void, including for antenna users within their range. On the other hand, some stations may wind up being sold to more bold and ambitious undertakers who may breath new life into them with new investments in over-the-air broadcast infrastructure, amongst other improvements.
Last edited by tdotwriter (January 4, 2025 2:40 pm)