Is there a code for a Berkshire TV and Cox cable box?

Use the auto search capabilities of the Cox remote. (I believe you hold down mute and select until a device button blinks. Click the device you want to program (TV), then hold down select while pointing the remote at the TV, this can take well over a minute or longer. The device button will blink every few seconds or so. When the TV turns off, you're solid. Click the device button to confirm).