PR Suggestion for Youtube
I suggest that you publicly encourage Youtubers uploading game footage to include the game version in the information or title of their video.
Out of date (but not labelled) footage of games can dis-encourage interested customers who see buggy or outdated gameplay footage, and take it to be the current state of the game. Labelling game versions also allows Youtube users to follow game updates.
It’ll help with Youtube user-made advertising. ;)