cable/satellite system to carry the signal. This option allows broadcasters who own stations, including those affiliated with major networks such as CBS, NBC and ABC or Fox to request cash or other compensation from cable/satellite providers for signals. Initially, stations usually attempted to gain further distribution of cable/satellite services and/or co-owned low-power television stations in which they also hold an equity position rather than direct cash compensation, which cable/satellite systems had almost universally balked at paying. However, in the mid 2000s the stations succeeded in earning carriage fees from cable/satellite systems. In some cases, these channels have been temporarily removed from distribution by systems who felt broadcasters were asking too steep a price for their signal. Examples include the removal of all CBS-owned local stations as well as MTV, VH1 and Nickelodeon from Dish Network for two days in 2004, the removal of ABC-owned stations from Time Warner Cable for a little under a day in 2000, and the removal of all Hearst Television local stations from Time Warner for more than a week in 2012. In August 2013, Time Warner Cable and CBS Corporation reached an impasse in negotiations over retransmission fees, forcing a one-month blackout of CBS-owned broadcast and cable networks similar to the 2004 Dish Network blackout. It was the longest such blackout to date, and has produced calls for Congress to revisit the issue of retransmission consent. TWC had offered affected customers a $20 credit on their bill for the inconvenience, but the blackout caused at least one class-action lawsuit against the cable operator, and others are pending. In the U.S., retransmission consent has often been chosen over must-carry by the major commercial television networks. Under the present rules, a new agreement is negotiated every three years, and stations must choose must-carry or retransmission consent for each cable system they wish their signal to be carried on. Non-commercial stations (such as local PBS stations) may not seek retransmission consent and may only invoke must-carry status. See also Significantly viewed Mexico Before 2013, no regulation required cable or satellite providers to carry national television networks or, in the case of cable, local stations. Cable providers had to negotiate retransmission consent with Televisa and TV Azteca; often, they were bundled with other pay channels. Local stations had to strike separate agreements. This meant that few providers had all of the local stations available in an area, and availability