Michael, I think your version of the Coolidge Effect is a bit off: your explanation falls short in effectively getting the point of the concept across.
Behavioral endocrinologist Frank A. Beach, who first coined the term in 1955, attributed the neologism to an old joke about Calvin Coolidge and his wife from when he was president several decades earlier. The story is as follows:
The President and Mrs. Coolidge were separately being shown around a farm. When Mrs. Coolidge came to the chicken yard she noticed that a rooster was mating very frequently. She asked the attendant how often that happened and was told, "Dozens of times each day," to which Mrs. Coolidge replied, "Tell that to the President." Upon being told, President asked, "Same hen every time?" The reply was, "Oh, no, Mr. President, a different hen every time," to which the President responded, "Tell that to Mrs. Coolidge!"
I realized you want these vlogs to come across as spontaneous and off-the cuff, but there are a plethora of sites on the Internet -- one particularly good one is Wikipedia.com -- that can help you present anecdotes more effectively.