How to Remove Orphan Prime Tuners?

So I'm switching from my HDHomeRun Primes to YTTV as a source as Spectrum finally priced me out. The Primes have been working great but one of the two Tuning Adapters was on the fritz reducing the channels by about 10 on one of the tuners so now big deal as the other one was working but not worth the effort to get it fixed or replaced. Anyhow, I have unplugged the Primes and they are not on the network any longer but I cannot remove them here which is potentially messing up the XMLTV guide data I'm exporting to Emby Live TV. How to get rid of them?

They'll always show if they're on your network and Channels DVR Server discovers them. If they are unplugged, they will disappear after restarting Channels DVR Server.

BINGO! Thanks!