We have a tag for this, no need to duplicate with a prefix.
Yes, please. I’ve just pushed a fix that makes those tags - which I consider to be the most important on the site - more visible. I’m editing ‘show B’ out of the titles to keep them tidy.
Also (no official hat), consider holding your show post until tomorrow - there’s only so much attention to go around on one particular day. Let the rush settle down a little and you’ll be getting more attention from the people who care most.