"Studio 60" is, in fact, gone from NBC's lineup for the rest of the TV season, and its time slot will become home to a reality series featuring engaged couples who are convinced their exchange of wedding vows will prove utterly tedious to their nearest and dearest unless improv actors are brought in to wreak havoc on the proceedings and the whole thing is replayed for the handful of Americans not yet addicted to CBS's body-parts-in-Miami drama on Mondays at 10 p.m.