53066.4. Every cable television system operating under a franchise or license awarded pursuant to Section 53066 shall, by July 1, 1984, and thereafter, offer to make a lockbox available to each of its subscribers. The monthly service charge for a lockbox shall not exceed fifty cents ($0.50), except that on January 1, 1985, and annually thereafter, the maximum monthly service charge shall be increased by an amount equal to the percentage increase in the Consumer Price Index.A city, county, or city and county is not precluded by this or any other provision of law from requiring, as a condition to the granting of a franchise, that a cable television system make lockboxes available to subscribers without charge.For purposes of this section, a 'lockbox' is a parental control device, either in the form of a separate unit or incorporated into a descrambler or other piece of equipment used to provide cable television service, which is made operational by a key or by a code, and which enables the subscriber to prevent the viewing of any pay channel offering adult programming.(Added by Stats. 1983, Ch. 264, Sec. 1.)