OK.. I oversimplified...

RG-6 and RG-59 are two types of coaxial cables that can be used with F-type connectors for the distribution of RF signals for cable TV (CATV) and satellite (broadband), and BNC connectors for closed-circuit environments and data transmission (baseband).

RG-59 is a lower grade of coaxial cable, consisting of a small center conductor, a small insulating dielectric, and typically, a single outer shield. It delivers acceptable performance for all of the above-mentioned applications.

RG-6, on the other hand, has a larger center conductor, a dual or quad shield, and a much larger insulating dielectric, thus ensuring more bandwidth and a lower frequency loss per foot. It delivers exceptional performance for the above-mentioned applications, and is considered the cable of choice for digital TV.