Derek Hough, left, rehearses with actress Marilu Henner in preparation for the season premiere of “Dancing with the Stars.”
Derek Hough, left, rehearses with actress Marilu Henner in preparation for the season premiere of “Dancing with the Stars.” Rick Rowell ABC
Derek Hough, left, rehearses with actress Marilu Henner in preparation for the season premiere of “Dancing with the Stars.” Rick Rowell ABC

What to Watch on Monday: A new season of ‘Dancing with the Stars’

September 12, 2016 06:00 AM