Fraternal Schwinns: S10E16:
"Frasier and Niles must learn to ride bicycles for the first time in their lives, to participate in the KACL Bike-a-thon."
Maris Counselor: S5E13:
"Niles is optimistic about his progress with Maris under their new marriage counselor, Dr. Schenkman. Deciding to surprise Maris with a nooner at her house, he is devastated to find Schenkman already waiting in her bed. He tells Niles they plan to get married. Niles finally decides to end his marriage. Martin looks forward to a date with an attractive neighbor, but it turns out his date is with her 86-year-old mother."
Link to updated bracket:
https://docs.google.com/spreadsheets/d/1xGaRWkX9TAr1rZJGeNRQfSHZPLk6L_OsZEGxEH2biuc/edit#gid=0
Your vote: Maris Counselor: S5E13