Season finale
Friends: "The One with Ross's Wedding" (1998) — In the fourth season finale of the American sitcom, Ross and several main characters travel to London for his wedding to Emily Waltham. Rachel unexpectedly arrives, intending to tell Ross she loves him and possibly stop the wedding, but she decides against this at the last minute and the ceremony goes ahead as planned. However, during the vows Ross says Rachel's name instead of Emily's, and the episode ends with the registrar asking whether he should continue the ceremony.  "The One in Vegas" (1999) — The fifth season of Friends ended with another cliffhanger, this time involving Ross and Rachel marrying drunkenly in Las Vegas, leading to their divorce in the following season.