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Glossary

What's In A Word

A list of frequently used terms, words and TLA's from the world of television and BARB ratings. 

 

AB

See Social Grade.

Adults

In UK audience measurement, 'Adults' refers to all viewers aged 16 and over.

Audience

The absolute number of people watching a programme, channel or daypart in a given demographic. Audience is typically expressed in thousands or millions.

Automatic

The default in the system which relates to dataset. This refers to the best and most recent dataset available.

Audience Profile

An audience profile shows the proportion of viewers by demographic group. Typical profiles are by age and Social Grade.

BARB

The Broadcasters' Audience Research Board, responsible for UK television audience data.

BARB Datasets 

To achieve both speed of delivery and maximum accuracy, BARB data sets are released in phases. Live + VOSDAL Data provides Live viewing and Timeshift viewing on the day of transmission. Consolidated Data provides data on Live Viewing and Timeshift over the following seven days. Programme Data finalises the exact durations of programmes and breaks (enabling Intervals to be shown)  and provides the final “gold standard” measure of viewing to selected content.

BARB Panel

The sample of UK television households from which BARB constructs viewing estimates.

Benchmarks

Benchmarking is used widely by Attentional to provide a measure of how a set of figures compare to 'normal'. In general, a benchmark figure will be produced by calculating an average value (of share or audience for instance) for a given channel, timeslot and date range. Figures that are produced against a benchmark are often expressed as an index. Where such an index is used a figure of 100 indicates a performance equal to the benchmark. Figures above 100 indicate better performance than the benchmark, while figures below 100 indicate worse performance.

C1

See Social Grade.

C2

See Social Grade.

Children

In UK audience measurement, 'Children' refers to all viewers aged 4-15. Viewers under 4 years of age are not monitored separately.

Consolidated Audience

This is the sum of the Live and Timeshift audiences.

Daypart

This is a section of the viewing day. Different broadcasters use different variations, but typical examples include Breakfast (0600-0930hrs), Daytime (0930-1800hrs) and Peaktime (1800-2300hrs).

DE

See Social Grade.

Demographic

Can be defined as statistical characteristics of a population. The most common demographic used for BARB data is Individuals 4+ (panel members older than 4 years old).

DTH

Direct-to-Home - Is a digital satellite service that provides television services direct to subscribers, e.g. Sky platform in the UK.

DTT

Digital Terrestrial Television - Freeview in the UK.

EPG

Electronic Programme Guide, an on-screen channel and programme listing available on digital TV.

Establishment Survey

A survey undertaken to determine the ownership of television equipment, and demographic characteristics of the population. The results inform the sample used for the BARB panel.

HD

High-definition – Video which is higher resolution than standard (SD). Please note ITV1 is the only channel which currently reports HD viewing separately (ITV 1 HD). To calculate ITV1 Total viewing using AQUA select ITV1 Total + HD. Please also note BBC HD includes simulcast with BBC channels (BBC2, BBC3 and BBC4).

Head of Household

The household member who either owns the property; is responsible for paying the rent; has use of the home as a result of his/her job; or is related to the owner or main tenant (where the owner or main tenant is not a regular member of the household).

Hours/Minutes of Viewing

The amount of TV watched by a particular audience category, generally expressed as an average over a given time period (e.g. average of 50 minutes per day).

Housewife

The household member who is responsible for the household duties. A housewife may be male or female, and there is only one housewife per household.

Impacts

A measure of viewing to advertisements. One impact is equivalent to one viewer watching one 30-second advertising spot.

Individuals

In UK audience research, this is all viewers aged 4+. Some countries use different definitions.

Intervals

Breaks in transmission for advertising and promotion. Intervals are only available from Programme Data.

Live (Audience)

The number of people watching at the time of transmission, rather than through recorded playback.

Live + VOSDAL (Audience)

Live + Viewed on Same Day as Live - The number of people watching at the time of transmission and any recorded playback up until 2am the same day.

Loyalty

This is a measure of how long individuals are watching programmes before switching away. It is calculated by dividing the average Audience by the Reach.

Metadata

Data used to describe other data. For example, the Production Company field added to the BARB data by Attentional is metadata, as it describes other data (the programme).

Multichannel Home

Any household receiving Cable (e.g. Virgin), Satellite (e.g. Sky, Sky+) and/or digital terrestrial transmissions (e.g. Freeview).

Network

In an audience context, Network usually refers to any programme shown in four or more regions of the UK simultaneously (e.g. not a regional transmission).

Overnight

A report based on viewing data from the day before, usually delivered daily in the form of a schedule with ratings data.

Panel 50

This is the full BARB panel, containing a mix of household types representative of the UK population.

Panel 70

This is a subset of the BARB panel, containing only multichannel homes.

Performance Index (PI)

Attentional's Performance Index shows how programmes have performed against the genre average for their channel and timeslot. The benchmarks used have been developed and tested by our statistical experts to provide a robust performance measure. It therefore offers a like-for-like comparison, reflecting the fact that genres as different as Drama and Current Affairs cannot be realistically expected to achieve the same audiences. Performance Index benchmarks are calculated using 365 days' worth of programme data, to ensure that a representative sample is used. The 365 day period is calculated as the 365 days immediately preceding either the transmission date of the programme being benchmarked, or the latest available programme data date (whichever is earlier). This 365 day period is shortened if the channel in question has not been supplying transmission data for a sufficient amount of time. A benchmark share figure is not produced if the channel has been supplying programme data for less than 14 days, or if programme data is missing from more than 10% of the benchmark days (due to unavailability of BARB data on certain days). Initially an attempt is made to calculate a benchmark figure using programmes only from weekends or weekdays (depending on the day of the programme being benchmarked), however if less than 3 such programmes are available the day-scope is expanded to include figures from all days of the week. If after extending the benchmark criteria to all days of the week there are still less than 3 programmes available from which to produce a benchmark the Performance Index figure is deemed to be invalid. The Performance Index is expressed as an Index, with a figure of 100 indicating that the programme share was equal to the benchmark share. Figures above 100 indicate better performance than the benchmark, while figures below 100 indicate worse performance.PI is based on Share.

Platform

A term used to describe the various ways in which a household can receive a TV signal. Six platforms are currently available in the UK: analogue terrestrial, analogue satellite, analogue cable, digital terrestrial, digital satellite and digital cable.

Programme Audience

This is the average audience for all the minutes covered by the programme, excluding advertisements, trailers and promotions.

Primetime

For the purposes of calculating an RSI figure a 'primetime programme' (also known as ‘peak time’) is defined as a programme whose midpoint occurs between 18:00 and 23:00 (inclusive).

PVR

Personal Video Recorder, allows you to record content to view at a later stage, e.g. Sky+ box. See Timeshift Audience.

Rating

See TVR.

Reach

The number or percentage of viewers who have seen a particular item (e.g programme, channel, daypart). The standard reach definition is three consecutive minutes (this is the amount of time someone has to watch the item before they count as a 'viewer'), although other reach criteria can also be used. Reach is cumulative - if someone watches the first episode of a series they will be added to the series reach, but they will not be counted again when they watch the second episode.

RSI

Relative Share Index gives an index rating for a given programme based upon its share performance compared with the benchmark share of other programmes on that channel within the last year. Primetime programmes are compared with a benchmark produced using impacts from the primetime time range, while all other programmes are compared with a benchmark produced from all available impacts within each benchmark day. The benchmark share is calculated using impacts occurring between the broadcast date of the specified programme and the 'benchmark start date'. The 'benchmark start date' is 365 days preceding the programme's broadcast date or the date on which the channel began supplying impact figures (whichever is more recent). A benchmark share figure is not produced if the channel has been supplying impact figures for less than 14 days, or if impact figures are missing from more than 10% of the days since the 'benchmark start date' (due to unavailability of BARB data on certain days). The RSI is expressed as an Index, with a figure of 100 indicating that the programme share was equal to the benchmark share. Figures above 100 indicate better performance than the benchmark, while figures below 100 indicate worse performance.

SD

Standard-definition television (SDTV) is a television system that uses a resolution that is not considered to be high-definition (HD) television.

Share

The percentage of the total TV audience watching over a given time period. This can be applied to channels, programmes or time periods. For example, an All Individuals share of 40% for EastEnders means that 40% of all the people watching TV during the time EastEnders was on were watching EastEnders.

Social Grade (Socio-Economic Group)

A classification of household status used in UK, based on the occupation of the Chief Income Earner in TAM panel households. The social grades are: AB - higher (A) or intermediate (B) managerial, administrative; C1 - supervisory or clerical, and junior managerial, administrative or professional; C2 - skilled manual workers; D - semi-skilled and unskilled workers; E - state pensioners, casual or unskilled workers.

Simulcast

Is the broadcasting of content across more than one medium, or more than one service on the same medium, at the same time. An example of this would be BBC HD, the channel simulcasts selective transmissions (titles such as Top Gear and Doctor Who) for BBC channels (e.g. BBC2, BBC3 and BBC4).

Smesh

Social media data provider for Attentional Ltd. Smesh captures tweets containing keywords associated with a given programme during its transmission, and during a variable time window either side of transmission. The length of this time window is varied depending on a number of related factors including server load, the number of different programmes for which tweets are being captured, and the total volume of tweets being captured. Unlike BARB data, the volume of Twitter content associated with a transmission is not extrapolated from a smaller sample – assuming good keyword definition, Smesh can capture all of the tweets associated with a programme in realtime. The capture of appropriate tweets is dependent on the suitability of the keywords used, which are editorially defined.

Social Media Data

See Smesh.

Spot

An individual occurrence of an advertisement.

TAM

Television Audience Measurement.

Terrestrial TV

Mode of broadcasting which does not involve satellite transmission or cables. Typically refers to the channel group BBC1, BBC2, ITV1, Channel 4 and Channel 5.

Timeshift Audience

The playback audience using VCR or PVR. In the UK, playback audience is added into the Consolidated Audience provided it occurs within 163 hours of the original transmission.

'Total' channels

Channels with a timeshift variant (e.g. Channel 4 and Channel 4 +1) are usually available as a 'Total' channel as well. For example, Channel 4 Total will combine the ratings of a programme shown on Channel 4 with its ratings on Channel 4 +1 an hour later. The audience figures are added together, so if the programme achieved an audience of 400,000 on Channel 4 at 9pm and 50,000 on Channel 4+1 at 10pm, the audience for Channel 4 Total would be 450,000. The Share figure is calculated using the industry standard of dividing the combined programme audience by total television viewing in the 9pm slot. All schedule information (including start times) on a 'Total' channel will be the same as the primary (non-timeshift) channel, e.g. the Channel 4 Total schedule will be the same as the Channel 4 schedule. Please note ITV1 is the only channel which currently reports HD viewing separately (ITV 1 HD). To calculate ITV1 Total viewing using AQUA you need to select ITV1 Total + HD.

Total TV

The average number of all the viewers in a particular demographic who are watching TV at a particular time.

TVR

Television Rating. This is the audience of a programme or daypart expressed as a percentage of the population as a whole. For examples, an Adults 16-34 TVR of 20% for EastEnders means that 20% of all 16-34's living in UK television households watched that programme.

Universe

The total population of a particular viewing category, usually expressed in 000s. BARB Universes are based on television homes. For example, the network universe for ABC1 women is the total number of ABC1 women living within television households in the UK.

Viewer Hour

One viewer hour is equivalent to one viewer watching one hour. Programme viewer hours are calculated by multiplying the Audience (in 000s) by the programme's duration (in hours).