United Kingdom, Aug. 16 -- Henry Winkler has "no idea" if Ron Howard thinks about working with him again.

More than four decades after the pair formed one of television's best-loved partnerships on Happy Days, the 80-year-old actor, forever associated with leather-jacketed Arthur "Fonzie" Fonzarelli on the sitcom, spoke about his 72-year-old former co-star at the Television Academy's Televerse Festival in Los Angeles, held on Saturday (15.08.26.)

Henry and Ron starred together as Fonzie and Richie Cunningham on Happy Days before Ron left the hugely successful sitcom in 1980 to concentrate on directing, and they later reunited professionally for the 1982 comedy Night Shift.

Asked by People whether he would like another collaboration wit...