Refurbished, so a limited warranty. Probably overkill for channels from a processing power perspective. You’d have to add storage.
Here it is again.
(Lenovo M93p Intel 128GB Tiny Desktop - $169.99 - Free shipping for Prime members https://computers.woot.com/offers/lenovo-m93p-intel-128gb-tiny-desktop?utm_medium=share&utm_source=app)
This desktop is what I'm using right now for my Channels setup and it is fantastic. With the solid state drive it is virtually silent and the fan only kicks on when processing a recording. But that's quiet too. It is fast and is new enough for the intel chip to boost processing the streams when you are watching a show away from home. Did I mention that it is TINY! I got mine on ebay but this is a great price.