The analog systems don't have what most networks want - Macrovision protection for the more expensive programs - they don't want you taping something that has to be watched live such as pay-per-view or special programming that is issued under a "copy-locked" contract.
You'll need to start renting the digital box if you want to get the channels that are not covered under the
FCC's "must-carry order" Those are the channels that are from local TV stations.
