John Stamos ended his Instagram post in Matthew Perry's honor by saying how much that moment had meant to him, even 20 years later, "I never forgot that and the world will never forget you." Such a classy move by Perry to make sure that Stamos got the recognition he deserved during his appearance on "Friends."

Plenty of commenters noted that they screamed when Stamos appeared on the show, even if it was just from their couches at home. And others said that story typified the type of person that Perry was — ready to show love and support to others and help them in whatever way he could.

Perry had a wish that his life would impact people in a positive way, particularly in helping people fight their addictions, something that he knew a lot about. Perry revealed in his memoir "Friends, Lovers, and the Big Terrible Thing," just how much his life had been controlled and impacted by addiction.

If you or anyone you know needs help with addiction issues, help is available. Visit the Substance Abuse and Mental Health Services Administration website or contact SAMHSA's National Helpline at 1-800-662-HELP (4357).