Capital Cities Communications v. CRTC (1977), [1978] 2 S.C.R. 141 is a Supreme Court of Canada decision on the legislative jurisdiction of cable television. Chief Justice Laskin, writing for the majority of the Court, held that all television, even where exclusively produced and distributed within the province, fell within the definition of a federal undertaking under section 92(10)(a) of the Constitution Act, 1867. The issue before the Court was whether the federal government had legislative jurisdiction over the content of cable television.