[1] He served as the president and founder of the National Institute on Media and the Family, based in Minneapolis, until it was closed in 2009.
[citation needed] In 2010, he and his wife, Monica, and daughter, Erin, launched Mind Positive Parenting.
Walsh is a public speaker and does presentations focused on brain development, adolescence, media on children and the factors that influence school performance.
[citation needed] Walsh has appeared on such television programs as 60 Minutes, Dateline NBC, The Early Show, NewsHour with Jim Lehrer, Good Morning America, The Today Show, the Jane Pauley Show and National Public Radio's All Things Considered.
He appeared in Spencer Halpin's Moral Kombat, a documentary on violence in video games.