I've been dutifully attaching to videos I post on Youtube, as per the blog post the Devs made on the subject: https://www.gaslampgames.com/2013/12/11/go-forth-and-monetize/ But at this point, it's a little bit outdated. Is that the copyright info you still want attached to videos? Maybe just updated to reflect the year?
Ah thanks for mentioning that Alephred, I didn't realise - i'll update mine later to include this for all current and future videos