Simon is frequently called upon by the news media to offer commentary on legal issues.
Staff members offer commentary about the seals and the many winter birds along the way.
He was also the first to offer commentary on the cases he wrote about.
Page remained in the booth to offer commentary and observations throughout the race.
He offers training videos and written commentary on his official website.
Since 2008, Rogers has offered real estate advice and commentary to a national audience.
Herzog's presence however is felt in the film and he offers commentary throughout.
He also offers regular commentary on television and radio.
For the first time, three living "Voices of the 500" joined together to offer commentary during the pre-race.
The budget office offered little commentary on its new estimates, but many of its numbers spoke for themselves.