Here is KYW-TV 3 signing off on or about January 1, 1986. Recorded from Philadelphia on VHS SP-mode. I have a separate file uploaded with the KYW-TV slide and tone that followed later that same morning.
WJZ-13, another Group W station in Baltimore, used the same Star-Spangled Banner video. It may have been from the same film print (see WJZ sign-off Dec. 1981 YouTube video).
Late 1980s commercial for the vintage fully-IBM compatible Headstart Computer designed by Vendex. Wrestler King Kong Bundy appears. Sold at SILO appliance stores in Philadelphia area.
April 18, 1950, 12:30 p.m. - The Elliot Lawrence band performs at Shibe Park during the season opener. Elliot explains how they later played at the opening game of the 1950 World Series.
1986 aircheck. During the eighties, New Jersey Network used this sign-off for all their stations with the warped image at the end. Recorded VHS EP-mode.
Here is another Channel 23 sign off that I found in my collection. It uses the "Positively New Jersey" film short followed by older NJN graphics. This clip is cut off at the end.