COZI

Cozi is a broadcast network carried by a local TV station. That station may be dropping it. Without knowing what station you are getting it from (or at least your local TV area), it's hard to say why.

The channel is KUBE in Houston. They claim the action to cancel was Comcast's choice.

There is an existing thread for the Cozi/KUBE issue

Comcast made the decision to cancel (based on a response to an inquiry I made to Comcast)