The FCC has finally granted voluntary startup of the new ATSC 3.0 system this year. Since ATSC 1.0 is not compatible with the new ATSC 3.0 system the FCC has guaranteed that the ATSC 1.0 system will not be turned off by the 5 major network stations for at least 5 years. During this time some stations will be sharing ATSC 1.0 transmitters with other stations (simulcasting networks like KTNV ABC HD 13.1 and KLAS CBS HD 13.2) and Some will upgrade their present transmitters or add a new transmitters for ATSC 3.0. When this happens the TV stations will tell you to do a rescan to get there station back.
Some low power DT stations will stay with the ATSC 1.0 system.(these low power stations typically have the secondary networks like MeTV and others like it that are in 480i) Right now there are very few if any 4K HDTVs or ota boxes with the new ATSC 3.0 tuners. So you might want to wait to buy your next 4K HDTV or ota box until they have the new ATSC 3.0 tuners in them if you want to get ota TV. When they do come out most HDTVs,4K HDTVs and 4K ota boxes should have both ATSC 1.0 and 3.0 tuners in them.
Even with the new ATSC 3.0 system most if not all the stations will use 1080i/p HDR (No costly station upgrade to 4K and only have the HDR upgrade) for local news and programing. Any programs in 4k HDR will be from local 4KDT productions and from the networks. The ability to do more with the TV signal is the biggest gain with ASTC 3.0 and many of stations will use ATSC 3.0 for data, ems and mobile streaming along with there TV broadcast. The other big benefit is better TV signal lock at longer distances and you should be able get those weaker stations with the ATSC 3.0 system.
Some low power DT stations will stay with the ATSC 1.0 system.(these low power stations typically have the secondary networks like MeTV and others like it that are in 480i) Right now there are very few if any 4K HDTVs or ota boxes with the new ATSC 3.0 tuners. So you might want to wait to buy your next 4K HDTV or ota box until they have the new ATSC 3.0 tuners in them if you want to get ota TV. When they do come out most HDTVs,4K HDTVs and 4K ota boxes should have both ATSC 1.0 and 3.0 tuners in them.
Even with the new ATSC 3.0 system most if not all the stations will use 1080i/p HDR (No costly station upgrade to 4K and only have the HDR upgrade) for local news and programing. Any programs in 4k HDR will be from local 4KDT productions and from the networks. The ability to do more with the TV signal is the biggest gain with ASTC 3.0 and many of stations will use ATSC 3.0 for data, ems and mobile streaming along with there TV broadcast. The other big benefit is better TV signal lock at longer distances and you should be able get those weaker stations with the ATSC 3.0 system.