Though online video has become a hugely popular source of on-demand video for consumers, it's not the only one available. Pay-TV operators have invested heavily in deploying their own on-demand systems through set-top boxes, which have gained strong acceptance. Comcast, for example, now reports 400 million on-demand sessions per month with about 40K TV show episodes and movies available.

However, when it comes to monetization, there's a significant difference between pay-TV VOD and online video. Whereas online video advertising has developed a robust ecosystem that will drive around $4 billion in revenue this year, pay-TV VOD advertising is nascent, as it has suffered from years of underinvestment.

More recently, though, companies like BlackArrow have developed dynamic ad insertion (DAI) capabilities for VOD, which have been deployed to around 30 million homes. In a fascinating discussion at the June 4th Video Ad Summit, Ashley Swartz from Furious Minds led a deep dive discussion of pay-TV VOD DAI and its relationship to both TV and online video with executives from BlackArrow, Comcast and OMD. For anyone trying to better understand these platforms and their monetization potential, the discussion provides great learning and insights.

The video is below and runs 31 minutes, 22 seconds.