Most companies want to correct any problems you are having. Sometimes technology changes for your area and you may have to update your equipment. Amplification may be needed to correct the problem. Using an amplifier can usually restore the signal strength and the picture sharpness. In most cases, the amplifier brings the picture back to its original quality.
Bullets are nothing more than a transmitted signal which effects the cable box program.
It does not effect the electronics inside of cable boxes, converters or descramblers. The brand name is located on the front of the box. This service usually includes local TV channels. The extra fee for such additional service may be based on a per channel, per group of channels, or on any other combination of channels. Selected channels that offer movies and special events such as sports or adult entertainment, for an additional fee, on a per movie or per program basis.