Carl Reiner was a comedy stalwart for nearly seven decades, a ceaseless worker who got his start on Fifties variety shows and was still providing high quality entrainment as the voice of “Carl Reineroceros” in last year’s Toy Story 4. Although it’s impossible to single out the thing Reiner is “most famous” for, several potential options include: creating, writing, directing and co-starring in The Dick Van Dyke Show; directing classic comedies like Oh, God! and The Jerk; and forming the long-running sketch duo, “2000 Year Old Man,” with Mel Brooks.