They do not own most of those assets directly, only a small fraction of their local affiliates are actually owned by CBS. Additionally, they are not mandated t

They do not own most of those assets directly, only a small fraction of their local affiliates are actually owned by CBS. Additionally, they are not mandated to broadcast their main money-making content on that spectrum either -- they could provide 24x7 wheel of fortune re-runs and a simple re-broadcast of the local morning and evening news would probably be sufficient for them to maintain the license.