Rick stated that his father is his hero and is thankful that he got a "very cool "Old Man" as his dad.
The details behind the 77-year-old's death have not yet been revealed. "He wasn't just a grandfather, he was truly a best friend as well", he wrote.
"Today I lost a friend, a father, a teacher and so much more", he wrote. In a statement obtained by the Hollywood Reporter, History says Harrison's "wisdom and candor" will be missed. Pawn Stars premiered in July 2009 on History Channel, showing the family business and the process they go through.
When Harrison was 1, his family moved to Lexington, N.C., where they lived off South Main Street.
Rick Harrison made the announcement on Facebook. "You could always count on him to straighten you out or make you laugh and both of those things I need every day".
The Navy veteran opened the Gold & Silver Pawn store with his son Rick in 1988. The series, now in its 15th season, became the network's highest rated show and the No. 2 reality show behind MTV's Jersey Shore.
Richard "Old Man" Harrison, one of the main guys from the A&E show "Pawn Stars", has died.
Nipsey Hussle Slaps Guy Outside BET Awards in Parking Dispute
Despite the drama, Nipsey ended up making it to the BET Awards pre-show, where he performed "Last Time That I Checc'd" with YG. TMZ reports the issue was Neighborhood Nip was late for a rehearsal and bypassed the traffic cones to reach a specific area.