Tvheadend

Is there any easy way to tell tvheadend to record a certain program, or programs added via autorecord, with more than one tuner ?
The idea is, I want to reduce the chances of transmission errors, as I think some of these errors are cause by the noise introduce by the signal amplifier/splitter I use. (I have 12 tuners connected, all to the same dvb-c provider). I'd avoid adding a duplicate network/channels if possible, as that would would complicate everything.