Photo via flickr under the Creative Commons License
The show was so popular, it went on to have nine seasons.
How I Met Your Mother is a comedy series about a group of five friends. In the show one of the main couple is between Ted Mosby and Robin Scherbatsky. Josh Radnor plays Ted Mosby. In the show Scherbatsky is a huge dog lover and has many dogs. In real life Radnor is very allergic to dog dander, so it made filming the scene’s difficult with his love interest.