Reruns.
Back in 1964, daytime reruns of the show began airing. However the show was retitled to Andy of Mayberry in order to distinguish repeat episodes from the new episodes which were airing in prime time. Since 2017, the show has actually been seen in syndication for 53 years!
Obama for President.
During Barack Obama’s 2008 Presidential bid, Ron Howard reprises his role of Opie and Richie Cunningham stepped back into his Happy Days role during a Funny or Die skit supporting Obama.