Not only is it impossible to replace Mel Blanc's Barney Rubble voice. But, all the other hilarious voices he does leave a huge hole in the show without him. There was zero chemistry without Mel Blanc. Daws Butler was only ok taking over the Barney Rubble voice. Makes you realize how irreplaceable the four main stars are how gifted they are. Fred's voice would later be replaced in future reboots of the series that I never really cared for. Episode only ok. The next four without Mel Blanc I'm not expecting too much from.
Interesting timing possibly to deflect the loss of Mel Blanc the show's first guest Hoagy Carmichael. He was fun to hear interact and sing. Nothing really funny in the episode. The singing was probably the highlight.