Last night, for the first time, I watched a bit of the show Young Sheldon. The lead character is the same lead character as in Big Bang Theory, as a child in grade school, and the series is set sometime in the 1970s. (Edited to add, maybe the 80s)
In the first 60 seconds that I saw, he was out on the patio talking to another kid, and there next to them was a Weber. I don't know my models well enough to identify it, but it was the style with a lid a bit flatter than the current models. The color was a dull dark green, not avocado unless it was smoke-stained. If the prop master got the right period grill, what model would that be?