Listerine Commercial - 1970's?

Complete Record: [Father] My own son - look at him. He hasn't said a word to me in weeks. Am I that square? Do I have bad breath? Why won't he talk to me honey? [Mother] Dan... try this. [F] Listerine - I use that for colds. [M] But it also kills germs that can cause bad breath. [F] Yeah, but it's so strong - it'll probably last for... hours. [M and F] Yeah, right. [F] Ok. Later that night. [F] You should have seen the look on that face. I just smiled and walked out. [Son] Gee Dad, you really were a rebel. [F] No, well, yeah, yeah. (laughs) [Voiceover] Listerine antiseptic. Kills germs. Lasts for hours. from a 16mm print