These cases involve three sections of the Cable Television Consumer Protection and Competition Act of 1992 (Act), as implemented by Federal Communications Commission (FCC) regulations. Both Section(s) 10(a) of the Act-which applies to "leased access channels" reserved under federal law for commercial lease by parties unaffiliated with the cable television system operator-and Section(s) 10(c)-which regulates "public access channels" required by local governments for public, educational, and governmental programming-essentially permit the operator to allow or prohibit "programming" that it "reasonably believes . . . depicts sexual . . . activities or organs in a patently offensive manner." Under Section(s) 10(b), which applies only to leased access channels, operators are required to segregate "patently offensive" programming on a single channel, to block that channel from viewer access, and to unblock it (or later to reblock it) within 30 days of a subscribers