https://www.metv.com/stories/vivian-vance-said-that-success-made-her-mean-for-a-while

Learning to love Ethel was no easy task for Vance.

Vivian Vance believed that acting in a comedy was more difficult than acting in a drama (https://www.metv.com/stories/vivian-vance-believed-that-acting-in-a-comedy-was-much-more-difficult-than-acting-in-a-drama)

"I happen to like to hear people laugh."