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astronomy

WBBM-TV

WBBM-TV is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand WBBM-TV rather than just read about it. In short: WBBM-TV (channel 2) is a television station in Chicago, Illinois, United States. Owned and operated by the CBS television network through its CBS News and Stations division, the station maintains studios on West Washington Street in the Loop, and it transmits from atop the Willis Tower.

WBBM-TV — main illustration
WBBM-TV — illustration

Key takeaways

  • WBBM-TV belongs to astronomy; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect WBBM-TV to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of WBBM-TV from memory before moving on to harder problems.

Reference excerpt

WBBM-TV (channel 2) is a television station in Chicago, Illinois, United States. Owned and operated by the CBS television network through its CBS News and Stations division, the station maintains studios on West Washington Street in the Loop, and it transmits from atop the Willis Tower.

History

Early history (1940–1953) WBBM-TV traces its history to 1940 when Balaban and Katz, a subsidiary of Paramount Pictures, signed on experimental station W9XBK, the first all-electronic television facility in Chicago. Balaban and Katz was already well known for owning several movie theaters in the Chicago area. To establish the station, the company hired television pioneer William C. "Bill" Eddy away from RCA's experimental station W2XBS in New York City. When World War II began, Eddy used the W9XBK facilities as a prototype school for training Navy electronics technicians. While operating the Navy school, Eddy continued to lead W9XBK and wrote a book that defined commercial television for many years. On September 6, 1946, the station received a commercial license as WBKB (for Balaban and Katz Broadcasting) on VHF channel 4, becoming the first commercial station located outside the Eastern Time Zone; it was also the sixth commercial TV station in the United States behind WNBT (now WNBC), WCBW (now WCBS-TV), WABD (now WNYW) all in New York City; WRGB in Schenectady, New York; and WPTZ (now KYW-TV) in Philadelphia. WBKB aired some of the earliest CBS programs, including the 1947 debut of Junior Jamboree (later renamed Kukla, Fran and Ollie after it moved to NBC in 1948). Channel 4 originally operated as an independent station, since at the time it was not clear that it would be an affiliate of either CBS or the DuMont Television Network; eventually, KSD-TV (now KSDK) in St. Louis became the first television station west of the Eastern Time Zone to affiliate with a major network. One of the station's early highlights was its telecast of the National Football League's championship game between the Chicago Cardinals and the Philadelphia Eagles on December 28, 1947. In December 1948, WBKB began sharing the market's CBS affiliation with WGN-TV (channel 9), after that station affiliated with the network. In 1949, Balaban and Katz became part of United Paramount Theatres, after Paramount Pictures was forced to divest its chain of movie theaters by order of the United States Supreme Court. WBKB played an indirect role in DuMont's demise. At the time, Paramount Pictures owned a stake in DuMont. The Federal Communications Commission (FCC) ruled that Paramount's holdings were large enough that the studio effectively controlled DuMont. Paramount also owned KTLA in Los Angeles; since DuMont already owned WABD (now WNYW) in New York City, WTTG in Washington, D.C., and WDTV (now sister station KDKA-TV) in Pittsburgh, the FCC's decision meant neither Paramount nor DuMont could acquire any more television stations. Paramount even launched a short-lived programming service, the Paramount Television Network (no relation to today's cable-only Paramount Network), in 1949, with KTLA and WBKB as its flagship stations; however, the service never gelled into a true television network.

… excerpt ends here. Continue reading the full article.

Illustrations

WBBM-TV illustration
WBBM-TV: Logo for CBS News Chicago; this version was used in conjunction with the CBS 2 News brand until July 8, 2024.
Logo for CBS News Chicago; this version was used in conjunction with the CBS 2 News brand until July 8, 2024.
WBBM-TV: 1977 newspaper ad for WBBM-TV's newscasts, which had become so popular in Chicago by that time that they were named THE Ten O'Clock News.
1977 newspaper ad for WBBM-TV's newscasts, which had become so popular in Chicago by that time that they were named THE Ten O'Clock News.
WBBM-TV: Harry Porterfield's demotion to weekend anchorman in 1985 prompted Rev. Jesse Jackson (pictured in 2013) to lead a boycott of WBBM-TV, which led to significant changes in the station's racial hiring quota.
Harry Porterfield's demotion to weekend anchorman in 1985 prompted Rev. Jesse Jackson (pictured in 2013) to lead a boycott of WBBM-TV, which led to significant changes in the station's racial hiring quota.

Worked examples

Example 1 — a first encounter with WBBM-TV

Start with the simplest possible case. Write down what WBBM-TV claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to WBBM-TV before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about WBBM-TV ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of WBBM-TV

In research
WBBM-TV appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses WBBM-TV in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
WBBM-TV is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1940 establishments in Illinois, ATSC 3.0 television stations, CBS News and Stations, so understanding it makes those chapters shorter.
In everyday life
Look for WBBM-TV outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study WBBM-TV in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what WBBM-TV means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain WBBM-TV out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is WBBM-TV in simple terms?

WBBM-TV (channel 2) is a television station in Chicago, Illinois, United States. Owned and operated by the CBS television network through its CBS News and Stations division, the station maintains studios on West Washington Street in the Loop, and it transmits from atop the Willis Tower.

Why does WBBM-TV matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study WBBM-TV?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on WBBM-TV.

Tags

  • 1940 establishments in Illinois
  • ATSC 3.0 television stations
  • CBS News and Stations
  • CBS affiliates
  • Comet (TV network) affiliates
  • Dabl affiliates
  • Start TV affiliates
  • Television channels and stations established in 1940
  • Television stations in the Chicago metropolitan area

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