Sea Cruise - S1-E5
Other mistake: When Danny falls overboard off the boat and into the water, you can hear the water splash, but you never see the water. Same with Joey, he dives off the boat, but you never see the water splash up. You would think you would see water splash up especially since how Joey jumped in. That would create a big splash.
Chosen answer: The first time was in the first season, episode 19 "The Seven-Month Itch", the second was in the fourth season, episode 1 "Greek Week", the third time was in the fifth season, episode 19 "The Devil Made Me Do It" and finally in the very last episode of the series, "Michelle Rides Again", season 8 episode 23.
jennibee