Set cable box to work on channel 4

I have my cable box hooked up to my TV via a coaxial cable. I recently got a new tv and did the auto tuner. The only channel that appears is channel 4. I can't go to channel 3 on my tv even if I scan again or manually add channel 3. So I was wondering if there a way to set the cable box to output a signal using channel 4? I have a Cisco Explorer 4742HDC cable box.