The couple, who invited TV cameras, to capture their wedding on Friday, also documented their preparations, all of which will appear on their TLC wedding special, airing July 30 at 9 p.m. ET.
In a preview for the show, Lachey, 37, reveals how he first asked out his future bride, 30.
“Best pick up line ever,” he says. “I always wanted to use it: ‘Hey, you want to be in my video?'”
Minnillo’s response? “Call my agent!”
Things obviously worked out for the pair, who began dating in 2006 and got engaged last fall.
As for the “I do” details, Lachey left those in his bride’s hands.
“It’s Vanessa’s day,” says Lachey. “Whatever fantasy, whatever dream wedding she has in her head, I want to do everything I can to make that happen.”
TLC will premiere this preview during its Say Yes to the Dress wedding block Friday, beginning at 9 p.m. ET.