Never watched McHale's Navy, but did see Marty and was touched by his performance.
Here's a 50-minute documentary of his bus travels with son Cris Borgnine. Ernie (as he calls himself) actually is comfortable behind the wheel. It's a customized bus called the "Sun Bum." Trips to the Miller brewery, Dairy Queen, and the Allen Edmonds shoe factory. Was supposed to be a reality series on the Discovery Channel, alas ...
Married 5 times, incl. a very brief marriage to Ethel Merman. In Merman's autobiography, the chapter entitled "My Marriage to Ernest Borgnine" consists of one blank page. Ended up with Tova.
There was a bar in NYC called Tortilla Flats that had an annual Ernest Borgnine Night.
Ernie seems like a cool guy here on this documentary. Sounds like he and Shelly Winters didn't really get along on Poseidon Adventure. He liked Bette Davis a lot.