YouTube, already the 800-lb. gorilla in video, has raised its ambitions even more by offering its YouTube TV streaming service in another 10 U.S. markets. In all, YouTube TV now serves 15 markets. But with so much competition, will YouTube be the leader in attracting new and younger subscribers?

A new video series called "Bridging the Gap" from digital health publisherRemedy Health Media features content, tools, and stories that seek to help patients live healthier and more fulfilled lives.

Given the barrage of streaming video services, it's remarkable that there are still some people who've never watched live streaming video. Research consultancy Magid Advisers found that 28% of respondents in a survey have never tuned in to live streaming video. That would suggest that there's plenty of potential for growth.