One hears this phrase more and more from sports commentators. A typical example would be a commentator at a sports event referring to an injured player or perhaps some celebrity as “watching on from the grandstand”.
Makes one wonder if, and why, “looking on” has suddenly become passé; or is it just an affectation started by someone trying to be different for the sake of being different and which has then been adopted by those who are inclined to participate in fads? Shall on-lookers now be known as on-watchers? Somehow it just doesn’t sound right.