Big Ten Network Overflow Channels

Does anyone know what the Big Ten Network overflow channels are in Phoenix? The Cox Representative doesn’t seem to understand what I am talking about and they keep giving me the regular Big Ten Network channels of 320 and 1320 for HD. I already know those. The problem is that during the football season the Big Ten Network schedules several games at the same time. They will schedule one of the games on the regular Big Ten Network channel (320/1320) and the others will be on the overflow channels. In the Cox Channel Listing online it says that the Big Ten Overflow channel is 1677 but that is the MLB extra innings channel on my tv which I do not get with my service. My issue is that Northwestern/Syracuse and Nebraska/Southern Miss games this week both start at 3:00 on BTN one of the them will be on the regular Big Ten Network channel and the other will be one the overflow channel. I really don’t want to miss my game if it is on the overflow channel. Please help as I specifically spend extra money to receive the Big Ten Network so I do not miss any of my team’s games. Thank you.