Utilize the input text as a context reference, choose the right relationship between Nine and video on demand from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Similar services like Nine and Fairfax's Stan and Seven and Foxtel's Presto are also new players in what is known as subscription video on demand (SVOD).

Answer: distribution_format