Understanding the information banner icons

When changing the channel, an information banner appears briefly. The following icons may appear in the banner.

:: Data service (Broadcast application)
:: Radio service
:: Scrambled/Subscription service
:: Multilingual audio available
:: Subtitles available
:: Subtitles and/or audio available for the hearing impaired
:: Recommended minimum age for current programme(from 3 to 18 years)
:: Parental lock
:: Digital programme lock
:: Audio available for the visually impaired
:: Spoken subtitle audio available
:: Multi-channel audio available