It is a happy day when Ron Howard and Henry Winkler reunite.

Over the years, the Happy Days alum have regaled in the opportunity to reflect on how much the ‘70s sitcom meant to them, even reuniting with costars Don Most and Anson Williams for the quartet’s first official cast gathering in 50 years at Steel City Comic Con. And half a century after Happy Days brought them together, Henry and Ron are closer than ever.

“What I can tell you is that having experienced him as an acting partner, he’s great,” Henry, 79, told E! News at the Pittsburgh event during a joint interview with Ron. “We acted together 50 years ago, and we are still like brothers.” (For more from the actors, tune into E! News tonight, April 7 at 11 p.m.)

The two costarred on the ABC sitcom, which ran for 11 seasons from 1974 to 1984, where Ron played Richie Cunningham, and Henry played the local bad boy Arthur “Fonzie” Fonzarelli. (Don and Anson were friends Ralph and Potsie, respectively.)