I had a nephew visit and had some great conversations, he is 15 years younger and pretty hip to lots of older cultural references, but definitely not all. One conversation centered around the upcoming Clerks 3, and the Jay and Silent Bob characters, leading to stoner characters in general. I was surprised to learn he knew nothing of the Reverand Jim Ignatowski (that's Starchild spelled backwards for all of you who missed out on Taxi), or Dr. Johnny Fever. I was showing him old clips and forgot how funny they were.
I don't know how to post a video clip but I'd say Cheech and Chong's 'Up in Smoke' where Cheech (Pedro) picks up Chong (The Man) hitchhiking. The following 5-8 minutes is probably some of the funniest stoner scenes ever.