The House Meets the Mouse (1) - S6-E23
Continuity mistake: Throughout this episode, Jesse and Becky are talking about how it is their anniversary. However, it is neither their dating anniversary which took place in January (See S2E11 A Little Romance) nor their wedding anniversary which took place on Valentine's day (See S4E19 The Wedding: Part 2). The House Meets Mouse Episode was a season finale which took place in May.
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