Did any of the IDOJ cast do commercials for sponsors like Pontiac cars. I noticed all through the series, the main characters drove many different Pontiac cars. I know that the cast of Hazel did commercials for sponsor Ford cars.

If they did, none of them has ever surfaced that I know. I remember seeing a pic of Barbara Eden holding a box of Baggies as some sort of contest in 1968 that they did on-air, but nothing else.

...General Motors provided the Pontiacs seen on the show (they weren't officially credited, though), but they never sponsored it. There were only two major sponsors associated with the series in its earlier seasons: Liggett & Myers [L&M, Lark, Chesterfield King] in season one {but Barbara, Larry, and the other cast members never appeared in "integrated" commercials for those brands}, and Colgate-Palmolive [Ajax, Colgate, Baggies, et. al.] during season two {this is where the picture of Barbara holding up a box of Baggies, while in the bottle, originated from}. No other sponsors alternated with them during those seasons, and "participating" sponsors- advertisers buying individual one minute spots- became the norm for the remainder of the series' run.

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Even though General Motors never sponsored the series on a regular basis, they did occasionally buy one minute spots in later seasons {i.e. the September 1968 episode "Jeannie and the Wild Pipchicks", with two 30 second "back-to-back" spots for GM and their Frigidaire division}.

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