[toast0]

Provisioning for overscan on 1080i CRTs seems just as valuable as with 480i CRTs.

People want content to the edge of the screen, but not to pay a TV technician to come and calibrate their tube to exacting standards in their home. Content creators need to know that some of their broadcast is invisible to some of their viewers as a result.

Pixel perfect tvs came later, so the transiton to HD wasn't the right time. ATSC3 could have been a reasonable time to change, but then broadcasters couldn't use the same feed for ATSC1 and ATSC3 ... and who knows if ATSC3 will ever win over ATSC1, or if all the OTA TV spectrum will be refarmed to telcos before that happens.