The younger brother of Dick Van Dyke, the comic actor turned down 'Gilligan's Island' to star on the ill-fated 'My Mother the Car.' Jerry Van Dyke, the younger brother of Dick Van Dyke who earned four Emmy nominations for playing the befuddled defensive coordinator Luther Van Dam on the ABC comedy Coach, has died, a source close to his family confirmed to The Hollywood Reporter. He was 86. Van Dyke famously passed up the opportunity to star on Gilligan's Island in favor of toplining the short-lived My Mother the Car, considered one of the worst shows in TV history. Van...