You may be right about SCD since this features in response to a question...
"Q: I've learned that the iCord Evolution has four tuners. But there are only two antenna inputs; how can this work?
A: Even more independent recording and streaming possibilities result with a "" one-cable solution "" and four "" user bands "". Give us a call or contact us by e-mail. We would be pleased to provide you with further information on this topic! "