We recently switched our choices, but still have basically the same bundles. We cannot get channel 596 (CBC news HD) on our guide. We can punch in 596 when we are on another channel and it tunes to 596, but we cannot channel up or down to it. When we go to select our preferences it is grey, not white. We have flushed the guide and unplugged the box but nothing is working to add 596 to our channel line up. We used to have it, so we know it is possible.