What was the most significant moment in the history of Barney and Ted's friendship on How I Met Your Mother?

The friendship between Barney and Ted was one of the most significant and entertaining parts of How I Met Your Mother. There were many moments throughout the show that showcased their bond, but one of the most memorable was in Season 3: Episode 13, “Ten Sessions.”

In that episode, Barney was trying to help Ted get over his ex-girlfriend and set him up with his dermatologist, Stella. However, when Ted finally went to ask her out, he found out that she had a strict “no dating patients” policy. Barney realized that Ted had been getting his hopes up for nothing and decided to take matters into his own hands. He got a group of his female friends to pose as Stella's patients and ask her out on a date. It was a hilarious and heartwarming moment that showed just how far Barney was willing to go to help his friend.

Overall, there were many significant moments in Barney and Ted's friendship throughout How I Met Your Mother, but this one stands out as a true testament to the strength and depth of their bond.