All Hawaii TV (AHTV) is a Video On Demand (VOD) channel, meaning it allows viewers to watch content whenever they choose, rather than at a scheduled broadcast time. There are essentially three types of VOD. Advertising Video On Demand or AVOD is free to the public but has commercial advertisements that play prior to, during, and sometimes after, the content. AHTV receives a share of any revenue earned from Roku for the airing of the advertisements. Accessing Roku (and in specific the Roku Channel), for example, is an AVOD system. The viewer does not have to pay anything (except to buy a Roku streaming player or Roku TV to access the channel). Subscription Video On Demand or SVOD is where the viewer pays a subscription fee for a period of time in order to watch the content. Amazon Prime is an example of this. AHTV keeps a portion of the subscription fee to cover channel costs, and passes on the great majority to the content provider. Transactional Video On Demand or TVOD is when the viewer pays to see the content. Purchasing or renting a song on iTunes is an example of TVOD. AHTV keeps a portion of all content sales to cover channel costs, and passes on the great majority to the content provider. AHTV provides all three forms of VOD, although content is not limited to video only. Audio recordings, photos, and informational text can also be uploaded onto the channel. AHTV works with each content provider to set up their content in the manner they prefer, which may include combining VOD types (e.g. AVOD with SVOD, and AVOD with TVOD). Which VOD is utilized depends on what the content purposes are, for which there are four types: 1. ADVERTISING; 2. ENTERTAINMENT; 3. SHARING; and 4. PRESERVATION.