When you find channels in the 100's on the DVR+ (CM-7500) guide, this is caused by duplicate channel numbers, from 2 TV Markets (2 Cities).
If 2 channels are scanned in and they have the same virtual channel number, you'll see the 2nd channel in the 100's.
If 2 channels are scanned in and they have the same real/transmit channel number, you'll see the 2nd channel in the 100's.