Cable Operators' program carriage determination is an editorial decision protected by the Constitution. However, as cable television still dominates in video programming distribution market and serves as an important communication platform, in order to ensure that unaffiliated programmers can have undiscriminated access to this platform and that the audience can receive more diverse information, certain restrictions on cable operator's program carriage decision would be necessary. The problems, then, are what kind of regulation is appropriate, and how to balance the interests among cable operators, programmers and the general public. This article first studies U.S. regulatory framework regarding cable operator's program carriage decision with special focus on Section 616 of the Communications Act, the F.C. C.'s program carriage rules, and recent program carriage cases. This article then reviews Taiwan's current program carriage regulation. Based on the comparison between U.S. and Taiwan's regulatory frameworks, this paper concludes that although program carriage decisions are highly regulated by Taiwan's Cable Radio and Television Act and its proposed amendments, they fails to safeguard and promote the communication of more diverse speech because it does not effectively address the potential anticompetitive carriage decisions toward unaffiliated programmers caused by the increasing vertical integration of cable operators and programmers.