Just a guess. Since they had the POV last night and did early diary room entries.
The HGs were put on an outside lockdown about 45 minutes go (12:15pm) and then the feeds switched to the fish - which happens a lot so I didn't think anything of it. However now there is trivia on the feeds and that usually means something else.
Perhaps there is a luxury competition to be played - and - if I may guess even more - perhaps one or more HGs will leave the house as a part of the prize. Anything big going on in LA this weekend? The next major even in the house is the POV meeting on Monday - so there is lots of time for an HG to be pulled away for an extended time.