WLS-TV

==WENR-TV==
===1948–1953===
Screenshot 2015-11-06-20-14-31 kindlephoto-58446608.jpg|WENR Channel 7 ident (1948)
Wner50s.jpg|WENR Channel 7 ID (early 1950's) 
Channel 7 first signed on the air on September 17, 1948, as WENR-TV, as the third television station in Chicago after WBKB Channel 4 (now WBBM-TV Channel 2) and WGN-TV Channel 9, and the 33rd of the U.S. The station is also the second of five ABC's original O&O stations after WABC-TV in New York City, and before WXYZ-TV in Detroit, KGO-TV in San Francisco and KABC-TV in Los Angeles.
==WBKB-TV==
===1953–1962===
WENR became WBKB-TV in 1953, after ABC merged with United Paramount Theatres (UPT), the former theater division of Paramount Pictures; of which UPT subsidiary Balaban and Katz owned the old WBKB (on channel 4; sharing the CBS affiliation with WGN-TV).
===1962–1968===
In 1962, ABC commissioned designer G. Dean Smith to create a proprietary logo for its owned-and-operated stations, known as the "Circle 7". This logo has since expanded into use by many ABC stations not owned by the network. It predates Paul Rand's ABC logo by 4 months.
==WLS-TV==
===1968–present===
====1968–1996====
Channel 7 had its call letters changed to WLS-TV on October 7, 1968, named after WLS Radio, which ABC had wholly owned since 1959 when the network bought the 50% interest it did not already hold in the station from the Prairie Farmer magazine.
===1996–present===
====1996–2012====
Secondary variation of logo. Used from 1996, it was gradually phased out in 2012 in favor of the shinier, glossy version below.
====2012–2013====
====2013–2018====
Still used as secondary logo when the 2018 logo below was introduced.
====2018–2021====
===2021–present===
First debuted on the Windy City Weekend debut minicut. Concurrently used alongside the logo above.
==External links==
Category:Television stations using the Circle 7 logo
Category:Chicago
Category:Illinois
Category:Television stations in the United States
Category:ABC network affiliates
Category:The Walt Disney Company
Category:Television channels and stations established in 1948
Category:ABC owned and operated stations
Category:Indiana
Category:Wisconsin
Category:1948
Category:Disney