So, Check all the connections from the wall to your cable box, and from the cable box to your television to ensure that all the connections are tight. If you are still experiencing issues, you will need to contact your cable or a satellite provider. Another issue with the television is that the television has a picture but no sound or sound without a picture, as this can be due to simple problems in the sound or the picture sets. So check the sound and the picture settings of your televisions. Customer Support Services