James Burrows — the legendary TV director and go-to guy for sitcom pilots like Taxi, Cheers (which he co-created), Frasier, Friends and Will & Grace — on Reiner's outsized impact on comedy as creator of The Dick Van Dyke Show. Ididn't know Carl that well — I met him a few times with Rob — but everyone who has ever worked in the sitcom world was amazed by him.