How I Met Your Mother's premiere episode turned 20 on Friday, Sept. 19. To celebrate, stars Josh Radnor, Alyson Hannigan and Neil Patrick Harris, as well as series co-creator Craig Thomas, spoke with PEOPLE about the "special" episode that started it all.
https://people.com/how-i-met-your-mother-turns-20-josh-radnor-alyson-ha…