From the TV show MY WORLD AND WELCOME TO IT, based on the work of James Thurber. This episode is titled "Rally 'Round the Flag" originally aired on Decmber 15, 1969.
The program was canceled after one season, after which it won an Emmy for Best Comedy. I was a very small kid when it aired and I remember being fascinated by the real life actor William Widom interacting with the B&W Thurber-esque characters. I could never make up my mind whether it was wonderful or scary.