What gets edited out of ‘Big Brother’? How sharp-eyed online viewers are leading a backlash.

CBS’s “Big Brother” specializes in excruciating moments, but last week’s eviction episode — in which contestant Jack Matthews, a 28-year-old fitness trainer from Florida, was eliminated — was especially awkward.

When Matthews sat for his live exit interview with host Julie Chen Moonves, producers took the unusual step of showing him footage of himself from earlier in the season, when he made “ugly comments” (Chen’s description) about two contestants of color in the house — and then asked him to explain himself.