Nancy wants to put a small TV in her kitchen, but there isn’t room for a full ginormous cable box. That’s okay, though: her cable provider, Comcast, makes a special mini box for tiny televisions in tight spaces. The problem is that if you want one, you have to just cross your fingers and hope that the installer happens to have one in their truck that day. You can’t order it, and you can’t even show up at a local Kabletown outpost to pick one up: there’s no guarantee they’ll have one. No, you have to use what your installer shows up with. And you’ll have to like it.