Here’s a rare look at the life of the iconic American broadcaster, the last of his kind on television.

Here’s an interview with the actor who played Cronkit, his widow, actress Janet Leigh and a number of other cast members, including her husband.

Here are the highlights of the new HBO documentary The Secret World of Walter C. Cronkites, premiering April 7.

Read moreHere are some highlights:Watch the first three episodes of the doc below: