Official CBS Synopsis:
HOW I MET YOUR MOTHER is a comedy about Ted (Josh Radnor) and how he fell in love. It all started when Ted's best friend, Marshall (Jason Segel), dropped the bombshell that he was going to propose to his longtime girlfriend, Lily (Alyson Hannigan), a kindergarten teacher. At that moment, Ted realized that he had better get a move on if he, too, hopes to find true love. Helping him in his quest is his friend Barney (Neil Patrick Harris), a confirmed bachelor with endless, sometimes outrageous opinions, a penchant for suits and a foolproof way to meet women. When Ted meets Robin (Cobie Smulders), he's sure it's love at first sight, but destiny has something else in store. The series is narrated through flashbacks from the future.

Season 3
Wait For It (September 24, 2007)
We're Not From Here (October 1, 2007)
Third Wheel (October 8, 2007)
Little Boys (October 15, 2007)
How I Met Everyone Else (October 22, 2007)
I'm Not That Guy (October 29, 2007)
Dowisetrepla (November 5, 2007)
Spoiler Alert (November 12, 2007)
Slapsgiving (November 19, 2007)
The Yips (November 26, 2007)
The Platinum Rule (December 10, 2007)
No Tomorrow (March 17, 2008)
Ten Sessions (March 24, 2008)
The Bracket (March 31, 2008)
The Simmons Reportv (April 14, 2008)
Sandcastles In The Sand (April 21, 2008)
TBA (May 5, 2008)
TBA (May 5, 2008)
TBA (May 12, 2008)
TBA (May 19, 2008)

Neil Patrick Harris as Barney
Jason Segel as Marshall
Alyson Hannigan as Lily
Josh Radnor as Ted
Cobie Smulders as Robin