WWSR-TV

WWSR-TV is a commercial-free television station licensed to and located in Philadelphia, Pennsylvania and is affiliated with the ad-supported preschool channel Sprout. It broadcasts on channel 63, and is owned by NBCUniversal which also owns WCAU-TV. Originally the station, which began broadcasting in 1977 was a independent station until 1988 and Nick Jr until 2005, and it was also owned by Williams Broadcasting, which also owns WKFC-TV (channel 46) in Grand Rapids and other stations across the nation, until 1988, and Nick Jr Television Stations until 2005 of which NBC purchased the station and became affiliated with Sprout.

1977-1986
It was based on the early 1980's Star TV logo, but instead of "TV", it read "63"

1986-1997
It was based on the 1990 WSTR-TV logo, but instead of "64" and "WSTR-TV", it read "63" and "WWSR-TV", the logo continued when WWSR-TV becomes a Nick Jr affiliate in 1988.

1997-2003
It was based on the 1996 KPTV logo, but instead of the state of Oregon, it has the state of Pennsylvania which inside the channel number "63".

2003-2005
It was based on the 1998 KCOP-TV logo.

2005-2013
It was based on the PBS Kids Sprout logo, but added the channel number next to the logo, and the call letters at the bottom.

2013-present
It was based on the Sprout logo, but added the call letters and channel number at the bottom.