First, please check that your antenna cable is connected properly to your set top box, PVR or TV.

Turn off your TV, set top box or PVR at the wall, wait 30 seconds before turning back on.

If this doesn't address the issue, try a retune (see a tuning guide here for tips).

Sometimes all it takes is a 'factory reset' or 're-installation' - press the 'MENU' button on the TV, PVR or set top box remote and follow the menu options.

If you're still having a problem, we suggest you first call the manufacturer for assistance (the phone number should be in the packaging or on the product guide). If this doesn't solve the problem, then call an installer. If they can't solve the problem either, then return to the retailer for more assistance. If you've purchased a non-approved digital receiver, we suggest you contact the person you bought it from for assistance.