Pirate television

A pirate television station is a broadcast television station that operates without a broadcast license. Like its counterpart pirate radio, the term pirate TV lacks a specific universal interpretation. It implies a form of broadcasting that is unwelcome by the licensing authorities within the territory where its signals are received, especially when the country of transmission is the same as the country of reception. When the area of transmission is not a country, or when it is a country and the transmissions are not illegal, those same broadcast signals may be deemed illegal in the country of reception. Pirate television stations may also be known as "bootleg TV", or confused with licensed low-power broadcasting (LPTV) or amateur television (ATV) services.

The first known pirate TV station in the US was Lanesville TV, active between 1972-1977 and operated by the counter-cultural video collective the Videofreex from Lanesville, New York. Another documented pirate TV station in the 1970s was Lucky 7, which broadcast for a single weekend in April 1978 from Syracuse, New York.

There are several techniques for pirate TV broadcasting, most of which have been made very difficult, or obsolete, by better security measures and the move to digital television.

Many analogue relay transmitters would "listen" to a more powerful main transmitter and relay the signal verbatim. If the main transmitter ceases broadcasting (for example, if a station closes down overnight) then a pirate signal on the same frequency as the main transmitter could cause the relay to "wake up" and relay unauthorized programming instead. Typically this would be done by outputting a very weak RF signal within the immediate vicinity of the relay: for example, a video cassette recorder (such as a 12v system designed for use in trucks) sending its signal to a home-made antenna pointed at the relay. As the pirate signal is relatively weak, the source can be difficult to locate if it is well hidden.

A significant benefit of this attack is that the potential viewers do not have to re-tune their televisions to view the content. The content simply appears on an existing channel, after close-down.

This attack is generally now prevented by the channels broadcasting 24 hours per day (e.g. showing test cards instead of closing down), by using satellite feeds instead of repeating terrestrial signals, by electronic security to lock the relay to the authorised source, or by the switch to digital television.

Unsecured analogue satellite transponders have also been reported to have been hijacked in a similar manner.

In this scenario, a man-in-the-middle attack is performed upon the source material, such that authorized official transmissions are fed with unauthorized programming from the central studio or play-out facility. For example, a link feed (e.g. outside broadcast) is hijacked by a stronger pirate signal, or pre-recorded media (such as videotapes or hard drives) are swapped over for unauthorised content. This attack would generally have to be performed by an insider or by gaining access to studio facilities by social engineering.