Newhart was a frequent guest on the era’s variety and talk shows, and a regular fill-in host on the “Tonight Show,” switching out for his friend Johnny Carson 87 times. Newhart never really ...

Like Carson, he keeps his chatter on the light ... is “the Rock of Gibraltar” (Joan Rivers), or “my security blanket” (Newhart). Once, when Newhart and Guest Bobby Morse were lulling ...