I have tried Orb and currently have a Hava. Orb never worked for me -- I tried many different settings and framerates, but video was always choppy. My PC has a tuner card.
The Hava works great. The player for the N8x0 platform works -- takes a little long to sync up -- but it works well.
The Hava works great. The player for the N8x0 platform works -- takes a little long to sync up -- but it works well.
I have not tried SlingBox.