Tonight's video was supposed to be about a bit of specialist show control equipment that has been giving us a very rough time on the Edinburgh Tattoo.
But adding the description is proving tricky as I don't want to be too mean to the manufacturer as we can't prove it's not rogue equipment causing RF issues.
So here's an ambient vintage test equipment video instead.
https://www.youtube.com/watch?v=n7l9TDfGFFg
The show control video may be released tomorrow.