Season 11, Episode 19 - "Last Tango in Seattle"
When Roz and Bulldog are invited to a friends’ wedding, Roz is flooded with memories of their own wedding reception, where Bulldog refused to dance in fear of embarrassing himself. When Roz reveals that she would’ve liked to have a first dance as man and wife, Bulldog decides he owes it to her and takes up dancing lessons. Roz is excited, until she realises that she needs a few lessons herself. Roz and Bulldog are assigned to the same class, where they find their desire to dance with each other is overshadowed by their desire to outdo each other. Meanwhile, Noel and Gil decide to take up dancing themselves and, to Noel’s utter dismay, he is mistaken to be Gil’s lover.