1. TEDâ€™S KIDS KNEW THE ENDING OF THE SERIES FOR NINE YEARS.
Lyndsy Fonseca (Penny) and David Henrie (Luke) shot all of their scenes during season one, because Henrie was going through puberty. When the kidsâ€™ footage for the series finale was shot, Thomas and Bays were the only people present. Fonseca and Henrie also had to sign a confidentiality agreement. The two honored it, even after Henrie was bribed with alcohol at bars by strangers wanting to know what he did.
2. Barney and his love affair with 8 and 3.
Whenever Barney showed off his statistics, he involved the numbers 83 or 8 and 3. In one instance when he posed as an old aged man, he claimed his age to be 83.
If you are a big â€˜How I Met Your Motherâ€™ fan, then you should go and check out the barrage of tie-in websites for the show. Every website mentioned in the show has its real life counterpart, no matter how obscure. Most of the websites such as www.canadiansexacts.org, tedmosbyisajerk.com, puzzlesthebar.com and stinsonbreastreduction.com are all real websites. Www.lilyandmarshallselltheirstuff.com was created for charity and items from the show were auctioned off in it.
4. Redbull for life
Neil Patrick Harris enjoyed Red Bull so much on and off the set of the show that he was given a lifetime supply of it and a mini-refrigerator by Red Bull because of the free advertising Neil gave the drink.
5. Suit up.
Barney had suits for all occasions including a flight suit for Halloween and suitjamas for sleeping in. There are only 12 times throughout the entire season of â€˜How I Met Your Motherâ€™ when Barney Stinson showed up without a suit.