§ 303(s)), commonly known as the All-Channels Act, was passed by the United States Congress in 1961, to allow the Federal Communications Commission to require that all television set manufacturers must include UHF tuners, so that new UHF-band TV stations (then channels 14 to 83) could be received by the public.

[2] Fourth-network operators such as the DuMont Television Network, forced to expand using UHF affiliates due to a lack of available VHF channels, were not viable and soon folded.

Under the All-Channel Receiver Act, FCC regulations would ensure that all new TV sets sold in the U.S. after 1964 had built-in UHF tuners.

Millions of dollars in fines were imposed in 2008 by the Federal Communications Commission against vendors, including various name-brand retail chains such as Best Buy, Sears/Kmart and Walmart.

In late March 2008, the Community Broadcasters Association filed a lawsuit in the U.S. Court of Appeals for the District of Columbia, seeking an injunction to halt the sale and distribution of DTV converter boxes,[7] charging that their failure to include analog tuners or analog passthrough violates the All-Channel Receiver Act.

All three use proprietary systems, and there have been no considerations to require the inclusion of open standards like FMeXtra, DRM+, DAB+ or DMB, which are compatible anywhere outside of the United States.