The most common problems with reception have to do with connection issues. Please try each of the following steps.
1. Verify Connections
Are all connections secured and have you checked that the other end of the cable is securely plugged in?
Are you using the proper connectors and color coding? If you are using a cable set-top box, the cable coming from wall should be connected to the "IN" jack on the cable box.
If you're not using a cable box, the cable coming from the wall should be connected to the "IN" jack on the VCR, DVD player or directly to the TV.
2. Check the Cable Box
Is the cable box power on? Make sure your TV is set to channel 3 or the correct video input. If you have a VCR or DVD player, make sure it is turned off.
3. Check the Cable Splitter
If you are using a cable splitter, check to make sure it is tight. To ensure the best performance with your digital cable signal, use a coaxial cable distributed by Time Warner Cable.