Utilize the input text as a context reference, choose the right relationship between working and NBC 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.

And that's that synergy working from the Xfinity marketing to the Sky platform to the NBC content.

Answer: original_broadcaster