The two media companies are joined backing the internet streaming company by venture firms Menlo Ventures and Globespan Capital Partners as well as an unnamed strategic investor in the round.

US-listed media company News Corporation and UK-listed satellite television company British Sky Broadcasting [BSkyB] have jointly invested $45m in Roku, a TV internet streaming company.

The two media companies were joined by venture firms Menlo Ventures and Globespan Capital Partners as well as an unnamed strategic investor in the round.

The new relationships include both financial backing and business agreements, Roku said.

News Corporation holds a controlling stake in BSkyB.

Jon Miller, News Corporation’s chief digital officer, said: “We have…