Canadian and other non-US broadcasters would have their own sponsors, so the graphics for Post would only be for broadcasts on CBS.
Well, I don’t recall it.
Possible explanation – most of my memories date from slightly later in the 1960s, and I susprect they phased out the advertising by then. I don’t recall ads in the Dick van Dyke show, as I said, but one of the comments on this site below claims that they put cigarette ads in the closing credits for DVD in 1962:
Here’s a discussion of such ads. Note that, except for The Felony Squad, all the closing credits with ads are from 1961 or earlier
To tell the truth, I don’t even remember The Felony Squad. But Wikipedia tells me it was broadcast from 1966 to 1969, which is about right for the look of the clips they show. But I don’t recall any shows with ads in the closing credits that late.
The Monkees also had closing credits ads. As they showed the four lads, each one had a different small cereal box. These are still there on the DVD.
I don;t remember them from when I watched it in syndication, but I would probably thought they were lame. I don’t mind the Monkees doing commercials, but not “during” the show. Purity of the art, people!
Thanks, that would have been my suspicion, too, though I couldn’t have guessed when they started to get phased out.
Yeah, I remember running home from school one Friday in November anxious to watch the afternoon cartoons, and none of them were on. Instead there was coverage everywhere about the assassination of President Kennedy. Yes, I’m old. We had been told about it at school but it never occurred to a very young me that it would affect broadcast schedules on all networks, and that it would scuttle Deputy Dawg and Top Cat!
If I may ask, how old are you and where are you from? I was in third grade in Minneapolis, and we were told the news just after lunch. I remember one of the janitors coming up to our teacher (old Mrs Wooley) in the hallway and whispering “Kennedy’s been shot!” in her ear. I’ll never forget the look on her face as she mouthed “Oh, no!”
We were all dismissed for the rest of the day, and when I got home my mother and older brother were huddled around the TV. I watched the coverage from Friday afternoon through the funeral on Monday, including the moment when Ruby shot Oswald.
I was a kid in Montreal at the time. The Kennedy assassination was obviously big news up in Canada, too. I remember a teacher making the announcement, but I don’t remember much more than that. School wasn’t cancelled, and because I was so young the import of it didn’t really register, so I was surprised and disappointed when all the cartoons were off the air. I also remember watching live when Jack Ruby shot Oswald.
We originally had only one English-language TV station in Montreal, CBMT. I was thrilled when CTV came along in 1961 and established CFCF-TV on channel 12. We also had access to WPTZ, the NBC station in Plattsburgh, and WCAX, the CBS outlet in Burlington, but it required either a roof antenna or dedicated manipulation of the rabbit ears, for which I developed proficiency at an early age. 
We got out of school early but they didn’t tell us why. On the way home kids were whispering about it. Then came the week without cartoons on TV. My father took my brother and me into DC to see the funeral procession. That was a bitterly cold day.