https://www.siliconvalley.com/2021/06/11/sees-candies-5-fun-facts-from-i-love-lucy-to-the-marshmint-mystery/

You’ve seen the hilarious “I Love Lucy” episode that features Lucy and Ethel frantically trying to wrap candies as the chocolates spill faster and faster off the assembly line. Turns out actresses Lucille Ball and Vivian Vance received some actual training in dipping and wrapping chocolates at the See’s candy factory on La Cienega Boulevard in Los Angeles before filming the 1952 scene on a re-created production line back at their Hollywood set. Which chocolates were they stuffing in their mouths, their caps, their uniforms? That trivia has been lost to history.

Is See’s most popular piece the caramel-marshmallow combo or the brown sugar buttercream topped with sprinkles? We went straight to the CEO with this question. “Scotchmallow vs. Bordeaux is a great debate, isn’t it?” Pat Egan says. “They are two iconic pieces that remain among our top bestsellers year after year. We have reported both as top sellers — they go back and forth and keep us on our toes to make sure we meet the demand.”