Grumpy Old Geeks Products Caavo Product Caavo 2 mentions in 1 episode A device described as connecting and controlling several television devices through one interface. Mentions 197: Last Night in Sweden Feb 20, 2017 21:03 This one's 400 bucks. Yo, it's called Kavo. 22:07 It takes over and becomes a master interface that allows you to control all of it.