Some random .video-js class in the page
SamLet's see this page:
https://www.teamtalk.com/news/man-utd-legend-backs-chelsea-to-beat-his-former-side
If we inspect the html, we can find this .video-js code at the end:

But there's no video shown on the page, the div height is zero.
From the screenshot we can see this articleURL, it leads to this page:
https://www.dailymail.co.uk/sport/football/article-6294273/Paul-Scholes-tips-Chelsea-beat-Manchester-United-crunch-clash-Stamford-Bridge.html
Again, from the screenshot we can see this mp4 file:
https://videos.dailymail.co.uk/video/mol/2018/10/15/659431895732762210/1024x576_MP4_659431895732762210.mp4
and yes, it's part of this article https://www.dailymail.co.uk/sport/football/article-6294273/Paul-Scholes-tips-Chelsea-beat-Manchester-United-crunch-clash-Stamford-Bridge.html:

I could extract the mp4, but it seems to be unnecessary because this video has totally unrelated content.
Now we can conclude that this site might copied part of contents from other sites and they didn't clean them before pasting, that's why those .video-js class won't work on this site.
Two options:
- Ignore them and generate IV for those pages. Both other templates choose this way, but it won't be reliable, since you don't know wether this site do have some working vide0 js or not.
- Mark .video-js with @unsupported. I prefer this one, just like we (all of the three templates) mark playbuzz widget https://instantview.telegram.org/contest/teamtalk.com/template11/issue6/ on this site with @unsupported because we can't just remove them all when we are not sure if they contain important data or not.