Hasselhoff then starred in the science-fiction series Knight Rider from 1982 to 1986. He has described Knight Rider as more than a TV show: "It's a phenomenon. It's bigger than Baywatch ever was." On the success of Knight Rider — "It's because it was about saving lives, not taking lives, and it was how one man really can make a difference. And we had a blast making it, and we made sure nobody died on the show [just as] we made sure nobody ever drowned on Baywatch. (However, in the 1982 two hour pilot "Knight Of The Phoenix", Michael Long's partner Mugsy is shot and dies in the parking lot. Also a female character died in the Nobody Does It Better episode and a gang member was killed by Michael Knight in the Short Notice episode.
In 2008, Hasselhoff was a featured guest in a Volkswagen commercial, where he talked about the company selling more cars in Europe and the rest of the world than any other brand. In response, the black Beetle commented that Hasselhoff is "not so big" in Brazil. In late October of that same year, Hasselhoff played a bit part in the EA real time strategy video game Red Alert 3 as vice president of The United States, while also starring in its promotional microsite, conquerthislife.com. The website featured several tongue-in-cheek videos as well as a Hasselhoff soundboard.
In February 2008- towards the end of the TV Movie Knight Rider 2008 (AKA Knight Rider SG) David reprised his career-making role as Michael Knight as he walked on to introduce himself to his on-screen son, Mike Traceur (Justin Bruening)In December 2008, Hasselhoff sang the national anthem at the NCAA Las Vegas Bowl. Although the game was televised live by ESPN, the station chose not to broadcast Hasselhoff's performance.
Hasselhoff married actress Pamela Bach on December 9, 1989. The couple had two daughters, Taylor Ann Hasselhoff born May 5, 1990 who attends the University of Arizona and actress Hayley Amber Hasselhoff born August 28, 1992. On January 13, 2006 Hasselhoff announced he was filing for divorce, citing irreconcilable differences. His publicist stated the couple had agreed to an amicable settlement. However, on March 9, 2006, Bach accused Hasselhoff of violent behavior towards her, his publicist stated that he denied the violence allegations. On June 15, 2007 Hasselhoff’s attorney Melvin Goldsman stated Hasselhoff was awarded primary physical custody and full legal custody of the two girls On June 30, 2006, Hasselhoff severed a tendon in his right arm while shaving in the bathroom of a gym in the Sanderson Hotel in London. The actor hit his head on a chandelier, which showered his arm with broken glass.
Hasselhoff’s autobiography Making Waves was released in the United Kingdom in September 2006. In an interview in April 2006, he promised the book would present the regarding controversial elements of his personal life.