It was at Bristol, the week before.
They never play those live, though. Always a coupel minutes after the fact. This is purely Fox's deal, imo.
Thanks for pointing out it was at the Bristol race. Now that you mention it, it seems they do play driver's comments after the fact, usually when replaying was caused the comments. With twenty or so cautions at Bristol, I'm surprised anything the drivers say could be played on air. That track is brutal.
This revelation would indeed put the ball in Fox's court.