I heard Rod Serling speak at a local college in the early 70s. The topic was why the US should not be engaged in Vietnam Nam. A lot of the audience walked out during his speech because they didn’t approve of his politics. I stayed and enjoyed it emensly. At the end he showed a Twilight Zone episode using an 8 mm projector. It won several awards and was called Execution at Owl Creek Bridge. Probably one of his best TZ episodes but they are all very good.