Automyth Server (x86_64) can automatically setup up to 32 HDHR Tuners when using ATSC 8vsb, while connected to one common antenna.
That's 32 Physical tuners without even using multi-record in under 10 Minutes, without you even looking at mythtv-setup.
Does Your DVR do that?
Default install uses Ethernet bonding to aggregate up to 4 devices to share on a common ip.
Can be up and running on a local network with 32 Tuners without even needing the internet for configuration.
Pre-setup storage...