WHYY

1957–1963
WHYY-TV was launched (debuted) on September 2, 1957 on UHF Channel 35.

1963–1978


In 1963, WHYY-TV changed channels from UHF Ch. 35 into VHF Channel 12.

1978–1984
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.