science

TV Site

TV Site 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 TV Site rather than just read about it. In short: A TV site is a website designed for viewing on a television set. Unlike mobile and PC access, the use of internet sites through the TV has been small, mostly due to the poor user experience of many "web on TV" deployments, and the "walled garden" or closed platform business models adopted by many TV network operators.

Key takeaways

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

Reference excerpt

A TV site is a website designed for viewing on a television set. Unlike mobile and PC access, the use of internet sites through the TV has been small, mostly due to the poor user experience of many "web on TV" deployments, and the "walled garden" or closed platform business models adopted by many TV network operators. With the advent of IPTV and Broadband enabled TV Devices web site owners have realized, that like Mobile, TV needs to be considered as a different media, and that Mobile, TV and PC based internet access all present different user interface design challenges in order to make the services usable and acceptable to consumers on the device they are using. TV Sites can be developed and deployed using a number of different technologies including Adobe Flash, WTVML, Java and HTML, although the same design principles apply whatever the development technology. Typically TV Sites are differentiated from other web sites by having a "wtv." rather than a "www." subdomain.

Interfaces The following styles of interface are often considered:

The "one foot" user experience - used to describe mobile apps, which are typically "personal" and used at a short distance from the device The "three foot" user experience - used to describe PC applications, which are typically used "personal" and accessed via a PC, with mouse, windows and a high resolution screen The "10-foot user interface" - used to describe TV applications, which are typically used in a "shared" environment, via a TV, with only a TV remote control as the input mechanism These interfaces are characterized as follows:

Mobile: narrow screen 1D scrolling, simplified layout, limited graphics and media types, limited transactional capability, limited keyboard, no pointer (see Post-WIMP) PC: wide screen, scrollable interfaces, complex layouts, complex media types, fully transactional, keyboard, pointer TV: wide screen, explicit layout, embedded scrolling, limited media types, video support, fully transactional, limited keyboard, no pointer

References Ashley Highfield (Director of New Media Technology at the BBC) mentions these types of interfaces here in his CES speech. Microsoft's "Online Spotlight" for Media Center PC was an early example of the ability to deploy TV Sites to Broadband TV devices, as reviewed here Companies in the UK advertise the building of TV Sites, examples: Enbecom and Glue4

Worked examples

Example 1 — a first encounter with TV Site

Start with the simplest possible case. Write down what TV Site 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 TV Site 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 TV Site 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 TV Site

In research: TV Site 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 TV Site 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: TV Site is common in secondary-school and first-year university syllabi. It links to neighbouring topics Digital television, Interactive television, Streaming television, so understanding it makes those chapters shorter.
In everyday life: Look for TV Site 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 TV Site in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what TV Site 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 TV Site out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is TV Site in simple terms?

Why does TV Site 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 TV Site?

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 TV Site.