WHYY-TV was launched (debuted) on September 2, 1957 on UHF channel 35.
In 1963, WHYY-TV changed channels from channel 35 to VHF channel 12.
WHYY-TV PBS 12 welcomes a new partner is WDPB-TV PBS 64 Seaford-Dover, DE-Salisbury, MD-VA it debuted on December 4, 1981.
Used for productions distributed nationally on PBS
Secondary logo (1994–1997)
As of 2022, this logo is still in use on the station's DT2 (Y2) and DT3 (Y Kids) digital subchannels.
TV stations in the Delaware Valley, including Philadelphia, Northern Delaware, South Jersey and the Lehigh Valley
TV stations in the Delmarva Peninsula, including Salisbury, Maryland and Dover, Delaware