They could do the show an an hour but they won’t because the need to sell more ads with the 2 hour format.
Milk it for all it’s worth.
I seems like in the earlier seasons, they didn’t sing the whole songs, but, only sang about a minute, and as the season progressed the time of the singing got longer. So, I guess I’ll take the longer show, because, before it was just too short to determine if they were any good or not.