What famous cartoon character is found smoking a cigarette in an ad at the end of his TV show?

There was a time in America when tobacco advertising was a prominent part of the media landscape. Fred Flintstone and his pal (Barney) are seen smoking to curb the stress in their lives and to take the edge off their personal issues at work and home. Fred grabs a cigarette and smokes in the ad at the end of his show to let people see his independence and free will. The suggestion is that they can do the same as him. Also it was fun to note the brand Fred is using and the jingle that he is reciting. It is about a Winston and not a Marlboro, Kool, Pall Mall, Camel, Lucky Strike, Viceroy, or some other brand.

It’s important to remember that when Fred did his ad saying, "Winston tastes good like a cigarette should", at the end of his show, it was made at a different time (1960s). Smoking in the 1950s and 60s was much more socially acceptable, and it was actively encouraged. The type of advertisement that Fred made for cigarettes was seen and heard everywhere in print ads, radio and television commercials.