He was the co-creator of the American sitcom television series Hello, Larry, which he created with his writing partner Dick Bensfield.
[1] Grant started his screenwriting career in 1952, writing for The Adventures of Ozzie and Harriet, where he met Dick Bensfield.
Bensfield and Grant wrote for The Adventures of Ozzie and Harriet until its final season.
In 1979 Grant and Bensfield created the new NBC sitcom television series Hello, Larry.
Grant died in December 2004 of complications from alzheimer's disease, at his home in Pacific Palisades, California, at the age of 80.