Wikipedia
KWDK is a Christian television station owned by Daystar, broadcasting out of Tacoma, Washington, formerly broadcasting on channel 56. On April 22, 2005, KWDK filed an application with the FCC for authorization to cease analog broadcasting and surrender its license for channel 56 prior to the end of the digital TV transition period, and thereafter operate KWDK-DT as a single channel, digital-only television station on channel 42. The FCC granted this authorization on July 20, 2005.
KWDK apparently ceased analog broadcasting on channel 56 sometime in April 2006. In August 2006 it was verified to be broadcasting in digital channel 42, making KWDK-DT the first digital-only broadcaster in the Seattle-Tacoma market. KWDK is carried on Comcast digital channel 18 in the Puget Sound area but is not included in the analog lineup.