WXYZ-TV in Detroit presently broadcasts 40 hours of locally produced newscasts each week. The news department of WXYZ-TV has been a longtime dominance of TV news in Detroit partly due to the popularity of long-time lead news anchor Bill Bonds, and it started as a small operation but it would gain credibility for its coverage of the 1967 Detroit Riots. In the 1970s, WXYZ began an agressive build-up to its news department by adopting many elements of the Eyewitness News format, such as the Cool Hand Luke news music, and in 1971, it named its newscast title: Action News. In 1973, Channel 7 Action News, for the first time ever, became the highest-rated newscast in Detroit and has had the lead ever since. In 1982, the station added the 5PM weeknight newscast. Over the years, the faces of anchors, reporters, meteorologists and sportscasters worked for WXYZ-TV were Bill Bonds, Dave Diles, Erik Smith, John Kelly, Jac LeGroff, Al Ackerman, Marilyn Tucker, Jack McCarthy, Jerry Hodak, Don Lark, Doris Biscoe, Steve Wilson, Diana Lewis, Robbie Timmons, Don Shane, Guy Gordon, Frank Turner, Cheryl Chodun, Bill Proctor, Mary Conway, Val Clark and more... In the 1990s, the station expanded its weekday morning newscast to the eventual start time at 5AM. In 2001, the station launched a 7PM weeknight newscast, and then expanded the noon weekday newscast to 1-hour. In 2002, WXYZ-TV launched its investigative unit: "7 Investigators". In November 2006, WXYZ-TV switched all of its newscasts to HD.