Utilize the input text as a context reference, choose the right relationship between BritBox and ITV 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.

The key priority at the start of the pandemic was to keep ITV on-air and the ITV Hub and BritBox fully operational.

Answer: founded_by