science

Sister station

Sister station is a science 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 Sister station rather than just read about it. In short: In broadcasting, sister stations or sister channels are radio or television stations operated by the same company, either by direct ownership or through a management agreement. Radio sister stations will often have different formats, and sometimes one station is on the AM band while another is on the FM band.

Key takeaways

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

Reference excerpt

In broadcasting, sister stations or sister channels are radio or television stations operated by the same company, either by direct ownership or through a management agreement. Radio sister stations will often have different formats, and sometimes one station is on the AM band while another is on the FM band. Conversely, several types of sister-station relationships exist in television; stations in the same city will usually be affiliated with different television networks (often one with a major network and the other with a secondary network), and may occasionally shift television programs between each other when local events require one station to interrupt its network feed. Sister stations in separate (but often nearby) cities owned by the same company may or may not share a network affiliation. For example, WNYW and WWOR-TV, in New York City and Secaucus, New Jersey, are both owned by Fox Corporation. WNYW is a Fox owned-and-operated station; WWOR-TV is a MyNetworkTV owned-and-operated station. WPSG in Philadelphia and KBCW in San Francisco were the flagship stations of The CW until 2023 and are owned by CBS Television Stations. In addition, stations in different cities affiliated with the same network, but not sharing an ownership tie, may refer to each other informally as sister stations. Sister networks or sister channels, in many cases, are cable or satellite channels which are launched to either broadcast series which either premiered on the main network but has been moved out of the higher-priority schedule (such as TV Land or Boomerang), fulfill a specific niche of content which would not be fulfilled on the main network (such as the Nick Jr. Channel or Nicktoons) or broadcast to a wider audience than the main network (such as CNN International or Al Jazeera English). However, in other cases, these cable or satellite channels may only share common ownership. The establishment and proliferation of sister networks on cable, satellite and internet providers has become easier and more commercially profitable over the history of such media venues.

See also Concentration of media ownership Parent company

References

Worked examples

Example 1 — a first encounter with Sister station

Start with the simplest possible case. Write down what Sister station claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Sister station 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 Sister station 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 Sister station

In research: Sister station appears in science 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 Sister station 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: Sister station is common in secondary-school and first-year university syllabi. It links to neighbouring topics Radio broadcasting, Television terminology, so understanding it makes those chapters shorter.
In everyday life: Look for Sister station 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 Sister station in 20 minutes

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

Frequently asked questions

What is Sister station in simple terms?

Why does Sister station matter?

Because it connects several science 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 Sister station?

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 Sister station.