In late March 2008, the CBA 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 CECBs. According to the CBA, the converters' lack of support for analog transmissions would harm its member stations, which include low-power and class A television stations, as it was cost-prohibitive for many of them to convert to digital transmission. The CBA claimed that the new boxes would prevent viewers from being able to watch these analog-only stations; viewers might not even be aware such stations still existed, because the boxes would not list them. At the time of the digital transition, the FCC did not set a deadline for existing LPTV stations to convert to digital service; however, it announced that no new analog LPTV stations would be authorized.